500X & 750X500X & 750XUser’s Guide

Guía del UsuarioMode d’emploi

Model 500X

Model 750X

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Thank you...for purchasing a Drill Doctor®. It is sure to become avaluable tool because you will always have sharp drill bitsbefore a project, during a project, and after a project.As president of this company, I am very proud of the qual-ity of our products—and I am equally proud of the greatpeople at Drill Doctor® who design and produce them. Ifyou have questions or need help with your Drill Doctor®,please contact us and one of our customer representativeswill be there to help. We support what we build!Use this User’s Guide and the DVD video to learn to oper-ate your Drill Doctor® quickly and easily. I’d also like toinvite you to visit our website at www.DrillDoctor.com.There you will find:

• Demonstrations of all operations with the sights andsounds leading to successful drill bit sharpening

• Downloadable copies of the User’s Guide

• Warranty registration

• Service and contact numbersAgain, thank you for buying a Drill Doctor®. Now goenjoy its convenience and quality.

Hank O’DoughertyPresident, Drill Doctor®

English

Contents

English...............................................................1

Important Safety Instructions...................................2

Getting to Know Your Drill Doctor® .........................5

Identifying Basic Drill Bits........................................6

Anatomy of a Drill Bit ...............................................6

The Drill Doctor® Sharpening Process ....................7

Choosing Your Drill Bit Point Angle on the

Model 500X.........................................................7

Model 750X.........................................................8Aligning the Drill Bit.................................................8

Sharpening the Drill Bit ..........................................10

Identifying Correctly Sharpened Drill Bits ..............12

Split Points..............................................................13

Creating or Replacing a Split Point.........................14

Identifying Correctly Split Bits ...............................15

Grit Tube Attachment..............................................16

Sharpening Bits of Different Lengths, Diameters and Types

Large Drill Bits .................................................16

Short Drill Bits and Bits Smaller than 1/8" ......17

Masonry Drill Bits.............................................17Using the Variable Alignment to Adjust Chisel

and Relief Angle ...............................................19

Using the Variable Material Take-Off on the 750X...20

Questions and Answers ...........................................21

Drill Doctor® Maintenance.....................................24

Accessories and User-Replaceable Parts.................27

Warranty .................................................................28

Español ............................................................29

Français............................................................60

www.drilldoctor.com 1

Thank you...for purchasing a Drill Doctor®. It is sure to become avaluable tool because you will always have sharp drill bitsbefore a project, during a project, and after a project.As president of this company, I am very proud of the qual-ity of our products—and I am equally proud of the greatpeople at Drill Doctor® who design and produce them. Ifyou have questions or need help with your Drill Doctor®,please contact us and one of our customer representativeswill be there to help. We support what we build!Use this User’s Guide and the DVD video to learn to oper-ate your Drill Doctor® quickly and easily. I’d also like toinvite you to visit our website at www.DrillDoctor.com.There you will find:

• Demonstrations of all operations with the sights andsounds leading to successful drill bit sharpening

• Downloadable copies of the User’s Guide

• Warranty registration

• Service and contact numbersAgain, thank you for buying a Drill Doctor®. Now goenjoy its convenience and quality.

Hank O’DoughertyPresident, Drill Doctor®

EnglishContents

English...............................................................1

Important Safety Instructions...................................2

Getting to Know Your Drill Doctor® .........................5

Identifying Basic Drill Bits........................................6

Anatomy of a Drill Bit ...............................................6

The Drill Doctor® Sharpening Process ....................7

Choosing Your Drill Bit Point Angle on the

Model 500X.........................................................7

Model 750X.........................................................8Aligning the Drill Bit.................................................8

Sharpening the Drill Bit ..........................................10

Identifying Correctly Sharpened Drill Bits ..............12

Split Points..............................................................13

Creating or Replacing a Split Point.........................14

Identifying Correctly Split Bits ...............................15

Grit Tube Attachment..............................................16

Sharpening Bits of Different Lengths, Diameters and Types

Large Drill Bits .................................................16

Short Drill Bits and Bits Smaller than 1/8" ......17

Masonry Drill Bits.............................................17Using the Variable Alignment to Adjust Chisel

and Relief Angle ...............................................19

Using the Variable Material Take-Off on the 750X...20

Questions and Answers ...........................................21

Drill Doctor® Maintenance.....................................24

Accessories and User-Replaceable Parts.................27

Warranty .................................................................28

Español ............................................................29

Français............................................................60

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IMPORTANT SAFETY INSTRUCTIONSFor your own safety, please read this User’s Guide beforeoperating the Drill Doctor® .

Installation• Carefully unpack the Drill Doctor® drill bit sharpener

and set it on a table. Check to see that no damage hasoccurred in shipment. Check all packing material to besure that all parts are present. See User’s Guide forpart identification diagram.

• The unit is completely assembled; the Drill Doctor®

only needs to be placed on a flat stable tabletop.

• Connect to properly wired outlet.

PrecautionsWhen using electric tools, basic safety precautions shouldalways be followed to prevent the risk of fire, electricshock, and personal injury.

• KEEP WORK AREA CLEAN. Cluttered areas andbench invite accidents.

• DO NOT USE IN DANGEROUS ENVIRONMENT. Donot use in damp or wet locations, avoid exposure torain. Keep work area well lit. Do not use tools in thepresence of flammable liquids or gases.

• GUARD AGAINST ELECTRIC SHOCK. Avoid bodycontact with earthed or grounded surfaces (e.g., pipes,radiators, ranges, refrigerators).

• KEEP OTHER PERSONS AWAY. Do not let persons,especially children, not involved in the work touch thetool or the extension cord and keep them away fromthe work area.

• STORE IDLE TOOLS. When not in use, tools should bestored in a dry, locked-up place out of the reach of chil-dren.

• DO NOT FORCE THE TOOL. It will do the job betterand safer at the rate for which it was intended.

• DRESS PROPERLY. Do not wear loose clothing or jew-elry; they can be caught in moving parts. Wear protec-tive hair covering to contain long hair.

• USE PROTECTIVE EQUIPMENT. Use safety glasses.Use face or dust mask if working operations createdust.

• DO NOT ABUSE THE CORD. Never yank the cord todisconnect it from the socket. Keep the cord away fromheat, oil and sharp edges.

• MAINTAIN TOOL WITH CARE. Keep the Drill Doc-tor® clean for best and safest performance. Followinstructions for maintenance and changing acces-sories. Inspect cords periodically and if damaged havethem repaired by an authorized service facility. Inspectextension cords periodically and replace if damaged.Keep unit dry, clean and free from oil and grease.

• DISCONNECT TOOLS. Always disconnect the DrillDoctor® when cleaning, inspecting, and changingaccessories, such as the diamond sharpening wheel.When not in use, disconnect from the power supply.Never touch internal parts of the sharpener when it isturned on or plugged in. The rotating diamond wheelcan cause injury.

• AVOID UNINTENTIONAL STARTING. Make sureswitch is in the “OFF” position before plugging in.

• STAY ALERT. Watch what you are doing, use commonsense and do not operate the tool when you are tired.

• CHECK DAMAGED PARTS. Before use of the tool, itshould be carefully checked to determine that it willoperate properly and perform its intended function.Check for alignment of moving parts, binding of mov-ing parts, breakage of parts, mounting and any otherconditions that may affect its operation. A guard orother part that is damaged should be properly repairedor replaced by an authorized service center unless oth-erwise indicated in the instruction manual. Have defec-tive switches replaced by an authorized service center.Do not use the tool if the switch does not turn it on andoff. Do not use if the grinding wheel is damaged. Useonly grinding wheels recommended by Drill Doctor®.

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IMPORTANT SAFETY INSTRUCTIONSFor your own safety, please read this User’s Guide beforeoperating the Drill Doctor® .

Installation• Carefully unpack the Drill Doctor® drill bit sharpener

and set it on a table. Check to see that no damage hasoccurred in shipment. Check all packing material to besure that all parts are present. See User’s Guide forpart identification diagram.

• The unit is completely assembled; the Drill Doctor®

only needs to be placed on a flat stable tabletop.

• Connect to properly wired outlet.

PrecautionsWhen using electric tools, basic safety precautions shouldalways be followed to prevent the risk of fire, electricshock, and personal injury.

• KEEP WORK AREA CLEAN. Cluttered areas andbench invite accidents.

• DO NOT USE IN DANGEROUS ENVIRONMENT. Donot use in damp or wet locations, avoid exposure torain. Keep work area well lit. Do not use tools in thepresence of flammable liquids or gases.

• GUARD AGAINST ELECTRIC SHOCK. Avoid bodycontact with earthed or grounded surfaces (e.g., pipes,radiators, ranges, refrigerators).

• KEEP OTHER PERSONS AWAY. Do not let persons,especially children, not involved in the work touch thetool or the extension cord and keep them away fromthe work area.

• STORE IDLE TOOLS. When not in use, tools should bestored in a dry, locked-up place out of the reach of chil-dren.

• DO NOT FORCE THE TOOL. It will do the job betterand safer at the rate for which it was intended.

• DRESS PROPERLY. Do not wear loose clothing or jew-elry; they can be caught in moving parts. Wear protec-tive hair covering to contain long hair.

• USE PROTECTIVE EQUIPMENT. Use safety glasses.Use face or dust mask if working operations createdust.

• DO NOT ABUSE THE CORD. Never yank the cord todisconnect it from the socket. Keep the cord away fromheat, oil and sharp edges.

• MAINTAIN TOOL WITH CARE. Keep the Drill Doc-tor® clean for best and safest performance. Followinstructions for maintenance and changing acces-sories. Inspect cords periodically and if damaged havethem repaired by an authorized service facility. Inspectextension cords periodically and replace if damaged.Keep unit dry, clean and free from oil and grease.

• DISCONNECT TOOLS. Always disconnect the DrillDoctor® when cleaning, inspecting, and changingaccessories, such as the diamond sharpening wheel.When not in use, disconnect from the power supply.Never touch internal parts of the sharpener when it isturned on or plugged in. The rotating diamond wheelcan cause injury.

• AVOID UNINTENTIONAL STARTING. Make sureswitch is in the “OFF” position before plugging in.

• STAY ALERT. Watch what you are doing, use commonsense and do not operate the tool when you are tired.

• CHECK DAMAGED PARTS. Before use of the tool, itshould be carefully checked to determine that it willoperate properly and perform its intended function.Check for alignment of moving parts, binding of mov-ing parts, breakage of parts, mounting and any otherconditions that may affect its operation. A guard orother part that is damaged should be properly repairedor replaced by an authorized service center unless oth-erwise indicated in the instruction manual. Have defec-tive switches replaced by an authorized service center.Do not use the tool if the switch does not turn it on andoff. Do not use if the grinding wheel is damaged. Useonly grinding wheels recommended by Drill Doctor®.

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• WARNING. The use of any accessory or attachmentother than one recommended in the instruction manualmay present a risk of personal injury.

• HAVE YOUR TOOL REPAIRED BY A QUALIFIEDPERSON. This electric tool complies with the relevantsafety rules. Repairs should only be carried out byqualified persons using original spare parts; otherwisethis may result in considerable danger to the user.

• NEVER LEAVE TOOL RUNNING UNATTENDED.

• USE EAR PROTECTION DURING USE. The DrillDoctor® can generate up to 85 dB (A) noise emissionswhen in operation.

For Service Contact:

Professional Tool210 E. Hersey St.Ashland, OR 97520 USA

Phone: 1-888-MYDRILL (693-7455)

FAX: 541-552-1377Email: tech@drillDoctor.com

WARNING:

Some dust created by power sanding, grinding, mis-cellaneous construction activities, as well as con-tents from the machine including the molding,wiring, grinding wheel, or any other parts may con-tain chemicals known to the State of California tocause cancer, birth defects or other reproductiveharm and can be hazardous to your health.

Getting to Know Your Drill Doctor®

Watch the User DVD included with your Drill Doctor®

and become a sharpening expert in minutes!

Cam GuideSharpening Port

Power Switch and Cord

Grit TubeChuck

Point AngleAdjustmentPlate

Bit Clamp ArmsDrill Stop

Split Point Guide Rails

Split Point Port

Splitting Guide

Chuck Jaws

Chuck Knob

Cam

Adjustable MaterialTake-Off (MTO) Knob(750X Only)

Point AngleAdjustment

Knob

Alignment Button

Wheel Access Cover

Quick ChangeDiamond SharpeningWheel (Inside)

Alignment Guides

Sharpening Guides

AlignmentPort

Relief AngleSettings

On 750XMTO is here

Masonry BitAlignment Mark

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• WARNING. The use of any accessory or attachmentother than one recommended in the instruction manualmay present a risk of personal injury.

• HAVE YOUR TOOL REPAIRED BY A QUALIFIEDPERSON. This electric tool complies with the relevantsafety rules. Repairs should only be carried out byqualified persons using original spare parts; otherwisethis may result in considerable danger to the user.

• NEVER LEAVE TOOL RUNNING UNATTENDED.

• USE EAR PROTECTION DURING USE. The DrillDoctor® can generate up to 85 dB (A) noise emissionswhen in operation.

For Service Contact:

Professional Tool210 E. Hersey St.Ashland, OR 97520 USA

Phone: 1-888-MYDRILL (693-7455)

FAX: 541-552-1377Email: tech@drillDoctor.com

WARNING:

Some dust created by power sanding, grinding, mis-cellaneous construction activities, as well as con-tents from the machine including the molding,wiring, grinding wheel, or any other parts may con-tain chemicals known to the State of California tocause cancer, birth defects or other reproductiveharm and can be hazardous to your health.

Getting to Know Your Drill Doctor®

Watch the User DVD included with your Drill Doctor®

and become a sharpening expert in minutes!

Cam GuideSharpening Port

Power Switch and Cord

Grit TubeChuck

Point AngleAdjustmentPlate

Bit Clamp ArmsDrill Stop

Split Point Guide Rails

Split Point Port

Splitting Guide

Chuck Jaws

Chuck Knob

Cam

Adjustable MaterialTake-Off (MTO) Knob(750X Only)

Point AngleAdjustment

Knob

Alignment Button

Wheel Access Cover

Quick ChangeDiamond SharpeningWheel (Inside)

Alignment Guides

Sharpening Guides

AlignmentPort

Relief AngleSettings

On 750XMTO is here

Masonry BitAlignment Mark

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Identifying Basic Drill BitsThe Drill Doctor is most efficient when used to sharpen adrill bit’s original point angle. With its standard DiamondSharpening Wheel it will sharpen high-speed steel, cobalt,TiN-coated, carbide and masonry drill bits.

It has been designed and engineered to sharpen three ofthe most common drill bit types and offer you an ability tocustomize your point:

Standard PointThis general-purpose point isused for drilling softer mate-rials like cold rolled steel,aluminum, and wood.

Split PointSplit-point bits are self-cen-tering and are generally usedfor tempered steels, hardalloys or hard cast materials.

Anatomy of a Drill Bit

Chisel EdgeIt is important to understandthat each bit has a all ofthese characteristics.

Cutting Edge

Heel ReliefAngle When viewing a well-sharp-

ened bit from the end, theentire surface from the Cut-ting Edge to the Heel willhave a finely ground surfacewithout ridges or indenta-tions. The Heel will alwaysbe lower than the CuttingEdge.

Cutting EdgeHeel

Masonry BitsMasonry bits have a carbideinsert at the point and areused for drilling materialslike cement, brick, andceramic.

The Drill Doctor® Sharpening ProcessThe sharpening process includes 4 easy procedures:

1. Determine the type and angle of the drill bit.

2. Align the bit in the Chuck.

3. Sharpen the bit.

4. Split the point (if you choose).

Be sure to complete the first three procedures inorder to sharpen a bit; and always sharpen a bit priorto splitting it.

On the Model 500X

Check your drill bit angleMost bits are 118° or 135°.Hold your bit point up to thekey to the left to see whichtype your bit looks like. If youcan’t tell due to small size ordamage on the tip, set yourDrill Doctor based on theapplication. Most wood andsoft metal applicationsshould use 118 degree. Hard-er materials such as stainlesssteel and tool steel should

use 135° or if you are drilling contoured materials such acar fender and plan on splitting the point.

Choosing Your Drill Bit Point Angle When drilling into certain difficult materials, a shallowerpoint or 135° point angle produces a better-finished hole.Your Drill Doctor allows you to sharpen bits with eitherthe standard 118°or the flatter 135° point angle. You canalso adjust the “chisel and relief angle.” (Refer to page 19for the benefits of using Variable Alignment to adjust theChisel and Relief angles.)Depending on the material you are drilling in, you maychoose to increase or decrease these angles.

1.

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Identifying Basic Drill BitsThe Drill Doctor is most efficient when used to sharpen adrill bit’s original point angle. With its standard DiamondSharpening Wheel it will sharpen high-speed steel, cobalt,TiN-coated, carbide and masonry drill bits.

It has been designed and engineered to sharpen three ofthe most common drill bit types and offer you an ability tocustomize your point:

Standard PointThis general-purpose point isused for drilling softer mate-rials like cold rolled steel,aluminum, and wood.

Split PointSplit-point bits are self-cen-tering and are generally usedfor tempered steels, hardalloys or hard cast materials.

Anatomy of a Drill Bit

Chisel EdgeIt is important to understandthat each bit has a all ofthese characteristics.

Cutting Edge

Heel ReliefAngle When viewing a well-sharp-

ened bit from the end, theentire surface from the Cut-ting Edge to the Heel willhave a finely ground surfacewithout ridges or indenta-tions. The Heel will alwaysbe lower than the CuttingEdge.

Cutting EdgeHeel

Masonry BitsMasonry bits have a carbideinsert at the point and areused for drilling materialslike cement, brick, andceramic.

The Drill Doctor® Sharpening ProcessThe sharpening process includes 4 easy procedures:

1. Determine the type and angle of the drill bit.

2. Align the bit in the Chuck.

3. Sharpen the bit.

4. Split the point (if you choose).

Be sure to complete the first three procedures inorder to sharpen a bit; and always sharpen a bit priorto splitting it.

On the Model 500X

Check your drill bit angleMost bits are 118° or 135°.Hold your bit point up to thekey to the left to see whichtype your bit looks like. If youcan’t tell due to small size ordamage on the tip, set yourDrill Doctor based on theapplication. Most wood andsoft metal applicationsshould use 118 degree. Hard-er materials such as stainlesssteel and tool steel should

use 135° or if you are drilling contoured materials such acar fender and plan on splitting the point.

Choosing Your Drill Bit Point Angle When drilling into certain difficult materials, a shallowerpoint or 135° point angle produces a better-finished hole.Your Drill Doctor allows you to sharpen bits with eitherthe standard 118°or the flatter 135° point angle. You canalso adjust the “chisel and relief angle.” (Refer to page 19for the benefits of using Variable Alignment to adjust theChisel and Relief angles.)Depending on the material you are drilling in, you maychoose to increase or decrease these angles.

1.

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On the Model 750X

Aligning the Drill BitThis makes sure that the Drill Doctor creates the rightgeometry. And, it sets the bit so that only a small amountof the tip is taken off.

See page 17 to align and sharpen a Masonry drill bit.)

1. Insert bit in Chuck andtightenInsert the bit into the ChuckJaws and close the Jaws just tothe point where the bit slides inand out. Do not over tightenthe Chuck; the bit needs to beable to move in and out untilStep 4. (Model 750X usersrefer to “Using the VariableMaterial Take-Off (MTO)” onpage 20.)A good test to see if the Chuckis tightened the correct amountis to make sure it moves whenyou pull on it with your fingers,but will not fall out when youturn the Chuck upside down.

Choose the angle

The Model 750X has addi-tional advanced features thatenable you to fine-tune yourbit geometry. Loosen thePoint Angle AdjustmentKnob to the right of theSharpening Port and slide themetal Point Angle Adjust-ment Plate to 118°, 135° or

the custom angle of your choice. Choose your point anglebased on the application you’re drilling. Then re-tightenthe Knob.

Insert Chuck intoAlignment Port Press the AlignmentButton down and hold it.Match the either of theAlignment Guides on theChuck with the 118°Notch on the AlignmentPort. Insert the Chuck.While holding the buttondown, slide the drill bitforward until it touchesthe Drill Stop and theChuck is pushed all theway into the AlignmentPort. Release the Align-ment Button.If you are using a Model750X and have chosena custom bit point(between 115° and 140°),

start your alignment in the closest setting to the pointangle you are using. (For example, if you are setting thepoint angle below 118°, than set the alignment in the 118°setting.) Refer to “Using the Variable Alignment to Adjustthe Chisel and Relief Angle” on page 19.

1”

Alignment Button

Drill BitStop

Point AngleAdjustment Knob

118°

2.

AlignmentGuide

Choose the angleLoosen the PointAngle AdjustmentKnob on the right sideof the Sharpening Portand slide the metalPoint Angle Adjust-ment Plate to eitherthe standard 118° orthe flatter 135° pointangle. Then re-tightenthe Knob.

Point AngleAdjustment Knob2.

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On the Model 750X

Aligning the Drill BitThis makes sure that the Drill Doctor creates the rightgeometry. And, it sets the bit so that only a small amountof the tip is taken off.

See page 17 to align and sharpen a Masonry drill bit.)

1. Insert bit in Chuck andtightenInsert the bit into the ChuckJaws and close the Jaws just tothe point where the bit slides inand out. Do not over tightenthe Chuck; the bit needs to beable to move in and out untilStep 4. (Model 750X usersrefer to “Using the VariableMaterial Take-Off (MTO)” onpage 20.)A good test to see if the Chuckis tightened the correct amountis to make sure it moves whenyou pull on it with your fingers,but will not fall out when youturn the Chuck upside down.

Choose the angle

The Model 750X has addi-tional advanced features thatenable you to fine-tune yourbit geometry. Loosen thePoint Angle AdjustmentKnob to the right of theSharpening Port and slide themetal Point Angle Adjust-ment Plate to 118°, 135° or

the custom angle of your choice. Choose your point anglebased on the application you’re drilling. Then re-tightenthe Knob.

Insert Chuck intoAlignment Port Press the AlignmentButton down and hold it.Match the either of theAlignment Guides on theChuck with the 118°Notch on the AlignmentPort. Insert the Chuck.While holding the buttondown, slide the drill bitforward until it touchesthe Drill Stop and theChuck is pushed all theway into the AlignmentPort. Release the Align-ment Button.If you are using a Model750X and have chosena custom bit point(between 115° and 140°),

start your alignment in the closest setting to the pointangle you are using. (For example, if you are setting thepoint angle below 118°, than set the alignment in the 118°setting.) Refer to “Using the Variable Alignment to Adjustthe Chisel and Relief Angle” on page 19.

1”

Alignment Button

Drill BitStop

Point AngleAdjustment Knob

118°

2.

AlignmentGuide

Choose the angleLoosen the PointAngle AdjustmentKnob on the right sideof the Sharpening Portand slide the metalPoint Angle Adjust-ment Plate to eitherthe standard 118° orthe flatter 135° pointangle. Then re-tightenthe Knob.

Point AngleAdjustment Knob2.

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Tighten Chuck

Hold onto the Chuck andtighten the Chuck Knob.(Avoid over-tightening theChuck in the Alignment Port.This could damage the Chuckand Port.)

Remove and re-tightenPress the Alignment Buttonand remove the chucked drillbit. Tighten the Chuck oncemore to ensure the bit won’tmove when you sharpen it.You are now ready to sharpenthe drill bit.

5.

Sharpening the Drill BitBefore sharpening you should know:

• Keep the Cam in contact with the Cam Guide as yousharpen—push the Chuck straight into the Port.

• Only light pressure is required.

1.

Cam Guide

Align Guides

Turn the Drill Doctor on.Align either of the Sharpen-ing Guides with the CamGuide on the machine.

Cam

4.

Insert Chuck and turnuntil the bit is sharpInsert the Chuck in theSharpening Port. Makingsure you keep the Camagainst the Cam Guide,rotate the Chuck one half-turn in a clockwise direc-tion—from Sharpening Guideto Sharpening Guide—aneven number of times. Yourmotion should be smooth and

even. To sharpen both sides of the bit evenly, always usean even number of half-turns. The number of turns neededto sharpen the bit depends on the size.Turn the Chuck an even number of half-turns with lightinward pressure:• 3/32-inch bits—use 2 to 4 half-turns, • 1/8-inch bits—use 4 to 6 half-turns, • 3/8-inch bits—use 16 to 20 half-turns.Note: Use just enough pressure to keep the Cam againstthe Cam Guide. Let the machine do the sharpening.

SharpeningGuide

Adjust Bit Position

Look at your bit and makesure the Clamp Arms are inthe bit’s narrowest spot. Ifthey aren’t, turn the bit in thechuck so that it is held by theBit Clamp Arms at the nar-rowest width. This is impor-tant because this settingdetermines the angle at whichyour bit will be sharpened.

3.

Drill Bit Stop

Bit Clamp Arms

2.

• You will hear a grinding noise (zzzzzzzzz) as youcomplete each half-turn and each side of the bit face isground.

• The Chuck will rock as you turn it and the Cam rideson the Guide.

Cam Against Cam Guide

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Tighten Chuck

Hold onto the Chuck andtighten the Chuck Knob.(Avoid over-tightening theChuck in the Alignment Port.This could damage the Chuckand Port.)

Remove and re-tightenPress the Alignment Buttonand remove the chucked drillbit. Tighten the Chuck oncemore to ensure the bit won’tmove when you sharpen it.You are now ready to sharpenthe drill bit.

5.

Sharpening the Drill BitBefore sharpening you should know:

• Keep the Cam in contact with the Cam Guide as yousharpen—push the Chuck straight into the Port.

• Only light pressure is required.

1.

Cam Guide

Align Guides

Turn the Drill Doctor on.Align either of the Sharpen-ing Guides with the CamGuide on the machine.

Cam

4.

Insert Chuck and turnuntil the bit is sharpInsert the Chuck in theSharpening Port. Makingsure you keep the Camagainst the Cam Guide,rotate the Chuck one half-turn in a clockwise direc-tion—from Sharpening Guideto Sharpening Guide—aneven number of times. Yourmotion should be smooth and

even. To sharpen both sides of the bit evenly, always usean even number of half-turns. The number of turns neededto sharpen the bit depends on the size.Turn the Chuck an even number of half-turns with lightinward pressure:• 3/32-inch bits—use 2 to 4 half-turns, • 1/8-inch bits—use 4 to 6 half-turns, • 3/8-inch bits—use 16 to 20 half-turns.Note: Use just enough pressure to keep the Cam againstthe Cam Guide. Let the machine do the sharpening.

SharpeningGuide

Adjust Bit Position

Look at your bit and makesure the Clamp Arms are inthe bit’s narrowest spot. Ifthey aren’t, turn the bit in thechuck so that it is held by theBit Clamp Arms at the nar-rowest width. This is impor-tant because this settingdetermines the angle at whichyour bit will be sharpened.

3.

Drill Bit Stop

Bit Clamp Arms

2.

• You will hear a grinding noise (zzzzzzzzz) as youcomplete each half-turn and each side of the bit face isground.

• The Chuck will rock as you turn it and the Cam rideson the Guide.

Cam Against Cam Guide

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Identifying Correctly SharpenedDrill Bits (and what to do withthose that aren’t!)

Correctly Sharpened Bits

The entire surface from theCutting Edge to the Heel willhave a finely ground surfacewithout ridges or indenta-tions. The Heel will alwaysbe lower than the CuttingEdge. The Chisel Edge will beclean and straight.

Problem CauseChuck Jaws did not grip drillbit properly in the aligningprocess (Page 8).

SolutionRealign the bit by carefullyfollowing steps 1 through 5on Pages 8 to 10.

ProblemThe Chisel Edge isnot clean orstraight.

CauseThe bit isn’t completely ground yet.

SolutionContinue sharpening the bit untilthe chisel is clean and straight. Ifthe machine quits removing mate-rial before the chisel is clean, re-align and sharpen again. (Model750X users can increase ordecrease MTO (material take-off)to speed up this process.

Cutting EdgeHeel

Relief Angle

Problem CauseDrill bit alignment.

SolutionRe-align the drill using theAdjustable Alignment proce-dure on page 19. To increaserelief, insert the alignmentguide on the chuck closer tothe (+) side of the alignmentport, then sharpen the bit.

Insuffecient (Negative)relief or a slow cuttingdrill bit.

CauseChuck too loose or too muchpressure when sharpening.

SolutionUse more torque when tight-ening the Chuck or less pres-sure when sharpening. Cleanthe Chuck w/ compressed airif the problem persists.

Bit backing out orslipping out of thejaws when you aresharpening

Problem

Split PointsSplit point drill bits prevent walk-around on the materialbefore they begin to cut.

This feature is described as self-centering. The need tocenter punch is effectively eliminated. A standard drill bitchisel point has to wear an area in the middle of the holeto be drilled before the cutting edges will remove material.Due to its additional cutting lips along the chisel edge, asplit point will begin cutting immediately. Up to 70% lessthrust (when compared to a non-split or conventionalpoint) is required to drill a hole with a split point.

Chisel Point

Cutting Edge

Heel

The Chisel Edge is ground flat.

Incorrectly Sharpened Bits

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Identifying Correctly SharpenedDrill Bits (and what to do withthose that aren’t!)

Correctly Sharpened Bits

The entire surface from theCutting Edge to the Heel willhave a finely ground surfacewithout ridges or indenta-tions. The Heel will alwaysbe lower than the CuttingEdge. The Chisel Edge will beclean and straight.

Problem CauseChuck Jaws did not grip drillbit properly in the aligningprocess (Page 8).

SolutionRealign the bit by carefullyfollowing steps 1 through 5on Pages 8 to 10.

ProblemThe Chisel Edge isnot clean orstraight.

CauseThe bit isn’t completely ground yet.

SolutionContinue sharpening the bit untilthe chisel is clean and straight. Ifthe machine quits removing mate-rial before the chisel is clean, re-align and sharpen again. (Model750X users can increase ordecrease MTO (material take-off)to speed up this process.

Cutting EdgeHeel

Relief Angle

Problem CauseDrill bit alignment.

SolutionRe-align the drill using theAdjustable Alignment proce-dure on page 19. To increaserelief, insert the alignmentguide on the chuck closer tothe (+) side of the alignmentport, then sharpen the bit.

Insuffecient (Negative)relief or a slow cuttingdrill bit.

CauseChuck too loose or too muchpressure when sharpening.

SolutionUse more torque when tight-ening the Chuck or less pres-sure when sharpening. Cleanthe Chuck w/ compressed airif the problem persists.

Bit backing out orslipping out of thejaws when you aresharpening

Problem

Split PointsSplit point drill bits prevent walk-around on the materialbefore they begin to cut.

This feature is described as self-centering. The need tocenter punch is effectively eliminated. A standard drill bitchisel point has to wear an area in the middle of the holeto be drilled before the cutting edges will remove material.Due to its additional cutting lips along the chisel edge, asplit point will begin cutting immediately. Up to 70% lessthrust (when compared to a non-split or conventionalpoint) is required to drill a hole with a split point.

Chisel Point

Cutting Edge

Heel

The Chisel Edge is ground flat.

Incorrectly Sharpened Bits

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Creating or Replacing a Split Point

Leave bit in Chuck aftersharpening

Always align and sharpen abit before splitting it. To splitthe point, do not remove thebit from the Chuck aftersharpening.

1.

Align Guides

Align one of the SharpeningGuides on the Chuck (shortwhite marks) with the Split-ting Guide on the SplittingPort. Make sure the Align-ment Guides insert into theSplit Point Guide Rails in theSplitting Port.

2.

Split the point

Press Chuck slowly and firm-ly into the Splitting Port untilit stops. Remove the chuck,rotate one-half turn, andrepeat.

Check the tip of the bit care-fully to determine that bothsides of the bit are splitequally. Compare it to theillustrations. If it does notmatch, study the informationfollowing.

3.

Split lines are nearly straightacross.

Identifying Correctly Split Drill Bits(And What to Do With Those That Aren’t!)

Correctly Split

SolutionMore grinding is needed forlarger drill bits. If one side ofthe bit is undersplit, insertthe Chuck into the SplittingPort again and split bothsides. Push the Chuck intothe Port until it stops. Repeatuntil the split sides are equaland look like the correctlysplit bit shown above.

Undersplit

Oversplit SolutionReinsert the chucked bit intothe Sharpening Port andremove enough of the tipuntil the split tip looks likethe correctly split bit above.

Too much materialremoved. Split lines arejoined in the center andChisel Edge has beenremoved.

Split lines do not meet inthe center but ChiselEdge remains.

Split line

Not enough material hasbeen removed from theHeel of the drill bit.

Splitting Guide

Sharpening Guide

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Creating or Replacing a Split Point

Leave bit in Chuck aftersharpening

Always align and sharpen abit before splitting it. To splitthe point, do not remove thebit from the Chuck aftersharpening.

1.

Align Guides

Align one of the SharpeningGuides on the Chuck (shortwhite marks) with the Split-ting Guide on the SplittingPort. Make sure the Align-ment Guides insert into theSplit Point Guide Rails in theSplitting Port.

2.

Split the point

Press Chuck slowly and firm-ly into the Splitting Port untilit stops. Remove the chuck,rotate one-half turn, andrepeat.

Check the tip of the bit care-fully to determine that bothsides of the bit are splitequally. Compare it to theillustrations. If it does notmatch, study the informationfollowing.

3.

Split lines are nearly straightacross.

Identifying Correctly Split Drill Bits(And What to Do With Those That Aren’t!)

Correctly Split

SolutionMore grinding is needed forlarger drill bits. If one side ofthe bit is undersplit, insertthe Chuck into the SplittingPort again and split bothsides. Push the Chuck intothe Port until it stops. Repeatuntil the split sides are equaland look like the correctlysplit bit shown above.

Undersplit

Oversplit SolutionReinsert the chucked bit intothe Sharpening Port andremove enough of the tipuntil the split tip looks likethe correctly split bit above.

Too much materialremoved. Split lines arejoined in the center andChisel Edge has beenremoved.

Split lines do not meet inthe center but ChiselEdge remains.

Split line

Not enough material hasbeen removed from theHeel of the drill bit.

Splitting Guide

Sharpening Guide

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Grit Tube AttachmentThe Grit Tube attachmentis designed to keep anysparks caused by sharpen-ing safely inside themachine and away fromyou. In addition, the GritTube reduces the sharpen-ing dust in the air and onyour workbench.

Simply insert the Grit Tube into the Splitting Port of yourDrill Doctor when sharpening. It will catch the grit that isformed from the sharpening process. Clean the inside ofyour Drill Doctor and the Grit Tube on a regular schedule.The grit tube is designed to accept a standard 1” shop vac-uum for extended periods of sharpening.

Sharpening Bits of Different Lengths,Diameters, and Types

Drill Bits Of Different Sizes

Too many rotations of a small-diameter bit may result inincorrect sharpening and too few on a large bit may notsharpen enough. Continue to sharpen until the ChiselEdge is clean and straight and the entire surface from theCutting Edges to the Heel is finely ground.

• 3/32-inch bits—use 2 to 4 half-turns,

• 1/8-inch bits—use 4 to 6 half-turns,

• 3/8-inch bits—use 16 to 20 half-turns.

Large Drill Bits

The Model 500X sharpens bits from 3/32” to 1/2”. (Youcan also purchase a Large Bit Chuck that sharpens bits upto 3/4”.) The Model 750X comes equipped with thatLarge-Bit Chuck. It sharpens bits from 3/32 to 3/4 inches.

Large bits are sharpened just like any other bit.

It is important to sharpen these bits so that the entire faceof the drill bit is sharpened. A large bit requires morepressure and will require more half-turns to sharpen it.

Short Drill Bits and Bits Smaller than 1/8”

Set the point angle for 118°. Put the bit in the Chuck asnormal, but tighten Chuck so that it is just snug enoughfor the bit to move freely. Push and hold the AlignmentButton. Partially insert the Chuck in the Alignment Port,but do not push the Chuck all the way in. Use the ChuckKnob to rotate the bit until it can be held by the Bit ClampArms in the narrowest width of the bit. Make sure that thebit is touching the Drill Stop, then release the AlignmentButton. Turn the Chuck until the Alignment Guide on theChuck aligns with the 118º notch on the Alignment Port.Now, push the Chuck the rest of the way in. Tighten theChuck, remove, and tighten again.

Sharpen the small bit as usual.

Aligning and Sharpening Masonry Drill Bits

To sharpen a masonry bit, you do not turn the Chuck.Instead you insert the Chuck until it touches the wheel,remove, and repeat on the other side.

1.Set the pointangle to 118°.

Bits 1/2” or larger will need a minimum of 40 half turns. A3/4” bit may require up to 60 half turns. It may take twoor three complete sharpenings (repeat all steps) to re-sharpen a very dull or chipped large drill bit.

Your Drill Doctor is delivered with a 180-grit DiamondSharpening Wheel. If you regularly sharpen larger bitsbetween 1/2” and 3/4”, you may wish to purchase thecoarser 100-grit Diamond Sharpening Wheel, whichsharpens larger bits faster.

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Grit Tube AttachmentThe Grit Tube attachmentis designed to keep anysparks caused by sharpen-ing safely inside themachine and away fromyou. In addition, the GritTube reduces the sharpen-ing dust in the air and onyour workbench.

Simply insert the Grit Tube into the Splitting Port of yourDrill Doctor when sharpening. It will catch the grit that isformed from the sharpening process. Clean the inside ofyour Drill Doctor and the Grit Tube on a regular schedule.The grit tube is designed to accept a standard 1” shop vac-uum for extended periods of sharpening.

Sharpening Bits of Different Lengths,Diameters, and Types

Drill Bits Of Different Sizes

Too many rotations of a small-diameter bit may result inincorrect sharpening and too few on a large bit may notsharpen enough. Continue to sharpen until the ChiselEdge is clean and straight and the entire surface from theCutting Edges to the Heel is finely ground.

• 3/32-inch bits—use 2 to 4 half-turns,

• 1/8-inch bits—use 4 to 6 half-turns,

• 3/8-inch bits—use 16 to 20 half-turns.

Large Drill Bits

The Model 500X sharpens bits from 3/32” to 1/2”. (Youcan also purchase a Large Bit Chuck that sharpens bits upto 3/4”.) The Model 750X comes equipped with thatLarge-Bit Chuck. It sharpens bits from 3/32 to 3/4 inches.

Large bits are sharpened just like any other bit.

It is important to sharpen these bits so that the entire faceof the drill bit is sharpened. A large bit requires morepressure and will require more half-turns to sharpen it.

Short Drill Bits and Bits Smaller than 1/8”

Set the point angle for 118°. Put the bit in the Chuck asnormal, but tighten Chuck so that it is just snug enoughfor the bit to move freely. Push and hold the AlignmentButton. Partially insert the Chuck in the Alignment Port,but do not push the Chuck all the way in. Use the ChuckKnob to rotate the bit until it can be held by the Bit ClampArms in the narrowest width of the bit. Make sure that thebit is touching the Drill Stop, then release the AlignmentButton. Turn the Chuck until the Alignment Guide on theChuck aligns with the 118º notch on the Alignment Port.Now, push the Chuck the rest of the way in. Tighten theChuck, remove, and tighten again.

Sharpen the small bit as usual.

Aligning and Sharpening Masonry Drill Bits

To sharpen a masonry bit, you do not turn the Chuck.Instead you insert the Chuck until it touches the wheel,remove, and repeat on the other side.

1.Set the pointangle to 118°.

Bits 1/2” or larger will need a minimum of 40 half turns. A3/4” bit may require up to 60 half turns. It may take twoor three complete sharpenings (repeat all steps) to re-sharpen a very dull or chipped large drill bit.

Your Drill Doctor is delivered with a 180-grit DiamondSharpening Wheel. If you regularly sharpen larger bitsbetween 1/2” and 3/4”, you may wish to purchase thecoarser 100-grit Diamond Sharpening Wheel, whichsharpens larger bits faster.

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3. Set the depthSet the depth by lining up theSharpening Guide with the CamGuide. Push the Chuck into theSharpening Port until it stops andtighten the Chuck. Remove theChuck to ensure the carbide insert

is aligned with theMasonry Sharpen-ing Marks andtighten again.

Using the Variable Alignment to Adjustthe Chisel and Relief Angles

Both Models 500X and 750X enable you to adjust theChisel and Relief Angles of your drill bit. The Chisel andRelief Angles have a direct effect on the performance ofyour drill. By increasing the Relief Angle, you canincrease the speed of the drill in softer materials. Toimprove the quality of the hole you can adjust the drill tobe less aggressive. A less-aggressive drill has a lowerChisel and Relief Angle. Your Drill Doctor enables you toadjust both angles in one setting.

Chuck bit as usualTo prepare your bit for thisfine adjustment, follow allthe Steps for chucking yourbit given previously in thisUser’s Guide.

1.

Insert Chuck intoAlignment PortTo adjust the Chisel andRelief Angles, simply alignthe bit as usual with the fol-lowing adjustment;

To increase Relief—positionthe Chuck in the AlignmentPort so that the AlignmentGuide is closer to the (+)position. This will make amore aggressive drill point.

To decrease Chisel andRelief—position the Chuck inthe Alignment Port so thatthe Alignment Guide is closer

to the (-) position. This will make a more precise hole.Take care not to adjust Relief too far as this will actuallycause the drill to lose all Relief and therefore not drill ahole. Each notch in the Alignment Port is approximately a10° change in Chisel Angle.

2.

AlignmentPort

Sharpen by “plunging”Line up the Sharpening Guideon the Chuck with the CamGuide on the machine. Plungethe Chuck into the SharpeningPort until it touches the Sharp-ening Wheel. Remove theChuck, rotate one half-turnclockwise and repeat the plungeaction. Start with four plungesand always use an even number.

Inspect the bit and continue until the cutting surfaces aresharp. If the bit stops grinding before the edges are sharp,loosen the Chuck, push the bit out slightly. Make sure car-bide insert is still aligned with Masonry SharpeningMarks. Tighten the Chuck, and continue sharpening.

2. Align the bit with the MasonrySharpening MarksInsert the bit into the Chuck and lineup the carbide insert on the tip of thebit so that it is parallel to the Mason-ry Sharpening Marks on the end of

the chuck. Leave about1/2”-5/8” of bit stick-ing out past the nose ofthe chuck. Tighten thechuck just to the pointthat the bit slides inand out.

Cam Guide

Cam

Sharpening Guide

MasonrySharpening Marks

4.Cam Guide

Cam

1”

118°-+

Carbide Insert

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3. Set the depthSet the depth by lining up theSharpening Guide with the CamGuide. Push the Chuck into theSharpening Port until it stops andtighten the Chuck. Remove theChuck to ensure the carbide insert

is aligned with theMasonry Sharpen-ing Marks andtighten again.

Using the Variable Alignment to Adjustthe Chisel and Relief Angles

Both Models 500X and 750X enable you to adjust theChisel and Relief Angles of your drill bit. The Chisel andRelief Angles have a direct effect on the performance ofyour drill. By increasing the Relief Angle, you canincrease the speed of the drill in softer materials. Toimprove the quality of the hole you can adjust the drill tobe less aggressive. A less-aggressive drill has a lowerChisel and Relief Angle. Your Drill Doctor enables you toadjust both angles in one setting.

Chuck bit as usualTo prepare your bit for thisfine adjustment, follow allthe Steps for chucking yourbit given previously in thisUser’s Guide.

1.

Insert Chuck intoAlignment PortTo adjust the Chisel andRelief Angles, simply alignthe bit as usual with the fol-lowing adjustment;

To increase Relief—positionthe Chuck in the AlignmentPort so that the AlignmentGuide is closer to the (+)position. This will make amore aggressive drill point.

To decrease Chisel andRelief—position the Chuck inthe Alignment Port so thatthe Alignment Guide is closer

to the (-) position. This will make a more precise hole.Take care not to adjust Relief too far as this will actuallycause the drill to lose all Relief and therefore not drill ahole. Each notch in the Alignment Port is approximately a10° change in Chisel Angle.

2.

AlignmentPort

Sharpen by “plunging”Line up the Sharpening Guideon the Chuck with the CamGuide on the machine. Plungethe Chuck into the SharpeningPort until it touches the Sharp-ening Wheel. Remove theChuck, rotate one half-turnclockwise and repeat the plungeaction. Start with four plungesand always use an even number.

Inspect the bit and continue until the cutting surfaces aresharp. If the bit stops grinding before the edges are sharp,loosen the Chuck, push the bit out slightly. Make sure car-bide insert is still aligned with Masonry SharpeningMarks. Tighten the Chuck, and continue sharpening.

2. Align the bit with the MasonrySharpening MarksInsert the bit into the Chuck and lineup the carbide insert on the tip of thebit so that it is parallel to the Mason-ry Sharpening Marks on the end of

the chuck. Leave about1/2”-5/8” of bit stick-ing out past the nose ofthe chuck. Tighten thechuck just to the pointthat the bit slides inand out.

Cam Guide

Cam

Sharpening Guide

MasonrySharpening Marks

4.Cam Guide

Cam

1”

118°-+

Carbide Insert

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Adjust bit position,tighten Chuck, andsharpen as usualRefer to pages 9-10 for theseSteps. Experiment with a fewdifferent settings to find theone that best suits your drillbits and application. You mayfind it helpful to mark thissetting for future use.

3.

Using the Variable Material Take-Off (MTO)

The Model 750X enablesyou to remove more orless material from the tipof your bit when yousharpen. If your bit isonly slightly dull and yousimply wish to “touchup” its point, turn theMaterial Take-Off Knob

clockwise to reduce the amount of time it takes to sharp-en the bit. If your drill bit is quite dull or damaged, turnthe Material Take-Off Knob counter-clockwise to increasethe amount of material removed. Your MTO adjusts from 0to .040 of an inch in increments of .005. Prior to aligningthe bit, turn the MTO Knob counter-clockwise until itstops. (This is the maximum material that can be removedin one sharpening.) Then turn it clockwise 3 marks on theMTO knob. This is a good place to start for most bits.

Now turn the MTO knob either direction to adjust thedesired MTO. Each mark on the MTO knob is equal to.005” change in material removed from the bit.

Note: After you have sharpened your bits on the Drill Doc-tor at least one time, it is desirable to turn the MTO Knobsuch that only a small amount of material is removed fromthe bit each time you sharpen. This will significantlydecrease the time to sharpen as well as extend your bitand wheel life. Once you’ve made your adjustment, alignand sharpen your bit as usual.

Questions and Answers

1. Question:Why was my drill bit sharpened improperly?

Answer: The most common cause of improper sharpening is drillbit alignment.

Key causes are:

1. Chuck not pushed all the way into the Alignment Port.

2. Drill not aligned in the Chuck Jaws correctly.

3. The type of drill requires an angle adjustment toachieve the desired Chisel and Relief Angles. Try usingthe Variable Alignment to adjust the Chisel and ReliefAngle (see page 19).

4. Chuck is dirty or the bit slipped out of alignment. Seepg 25, “Cleaning the Chuck.”

5. Too many rotations of a small-diameter bit results inincorrect sharpening, and too few on a large bit maynot sharpen enough. See page 16, “Drill Bits of Differ-ent Sizes.”

2. Question:When I aligned the drill bit and sharpened it, why wasno material removed?

Answer:This happens when the bit is not protruding out of theChuck far enough. You may have allowed the AlignmentButton to knock the drill back into the Chuck when align-ing the bit. Carefully realign the bit in the Alignment Portagain. Make sure the drill bit is pushed all the way againstthe Drill Stop before you release the Alignment Button

3. Question:I sharpened the bit. Why will it not cut?

Variable MaterialTake-Off Knob

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Adjust bit position,tighten Chuck, andsharpen as usualRefer to pages 9-10 for theseSteps. Experiment with a fewdifferent settings to find theone that best suits your drillbits and application. You mayfind it helpful to mark thissetting for future use.

3.

Using the Variable Material Take-Off (MTO)

The Model 750X enablesyou to remove more orless material from the tipof your bit when yousharpen. If your bit isonly slightly dull and yousimply wish to “touchup” its point, turn theMaterial Take-Off Knob

clockwise to reduce the amount of time it takes to sharp-en the bit. If your drill bit is quite dull or damaged, turnthe Material Take-Off Knob counter-clockwise to increasethe amount of material removed. Your MTO adjusts from 0to .040 of an inch in increments of .005. Prior to aligningthe bit, turn the MTO Knob counter-clockwise until itstops. (This is the maximum material that can be removedin one sharpening.) Then turn it clockwise 3 marks on theMTO knob. This is a good place to start for most bits.

Now turn the MTO knob either direction to adjust thedesired MTO. Each mark on the MTO knob is equal to.005” change in material removed from the bit.

Note: After you have sharpened your bits on the Drill Doc-tor at least one time, it is desirable to turn the MTO Knobsuch that only a small amount of material is removed fromthe bit each time you sharpen. This will significantlydecrease the time to sharpen as well as extend your bitand wheel life. Once you’ve made your adjustment, alignand sharpen your bit as usual.

Questions and Answers

1. Question:Why was my drill bit sharpened improperly?

Answer: The most common cause of improper sharpening is drillbit alignment.

Key causes are:

1. Chuck not pushed all the way into the Alignment Port.

2. Drill not aligned in the Chuck Jaws correctly.

3. The type of drill requires an angle adjustment toachieve the desired Chisel and Relief Angles. Try usingthe Variable Alignment to adjust the Chisel and ReliefAngle (see page 19).

4. Chuck is dirty or the bit slipped out of alignment. Seepg 25, “Cleaning the Chuck.”

5. Too many rotations of a small-diameter bit results inincorrect sharpening, and too few on a large bit maynot sharpen enough. See page 16, “Drill Bits of Differ-ent Sizes.”

2. Question:When I aligned the drill bit and sharpened it, why wasno material removed?

Answer:This happens when the bit is not protruding out of theChuck far enough. You may have allowed the AlignmentButton to knock the drill back into the Chuck when align-ing the bit. Carefully realign the bit in the Alignment Portagain. Make sure the drill bit is pushed all the way againstthe Drill Stop before you release the Alignment Button

3. Question:I sharpened the bit. Why will it not cut?

Variable MaterialTake-Off Knob

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Answer:This happens when the Heel on the bit is higher than theCutting Edge (negative relief). To correct this problem,follow the instructions in “Using the Variable Alignment toAdjust the Chisel and Relief Angle” on page 19.

You may have a specialty drill bit. Slow and Fast Spiral,Helix, Turbo Flutes, and Raised Margin drill bits are con-sidered specialty bits. If you’re are getting insufficientrelief on specialty bit types, try aligning all the way in the(+) setting on the alignment port. This will help improvethe sharpening on these types of bits.

4. Question:What can I do about flat spots on the bit point betweenthe Cutting Edge and the Heel?

Answer:The flat spots on a sharpened bit are the result of anincomplete or paused half-turn of the Chuck in the Sharp-ening Port. To correct, apply light, inward pressure androtate the Chuck smoothly while sharpening. Be sure tocomplete the half-turns.

5. Question:Why is the drill point off center?

Answer:If the tip of the drill bit appears to be sharpened off center,check the following items:• You may not have done an even number of half-turns

when you sharpened and one face of the bit wasground more than the other. Always use an even num-ber of half-turns when you sharpen.

• Make sure that there are no particles between theChuck Jaws and the drill bit that could hold it off cen-ter. Check the drill to ensure it is straight and free ofburrs.

• Make sure the bit is not loose in the Chuck.• During the sharpening process be sure to keep the

same pressure on each half-turn.

6. Question:Why is the chisel edge on my drill bit flat?

Answer:During the alignment process the Bit Clamps were grip-ping the high points of the drill bit. Realign the drill bitmaking sure that the Bit Clamps are located in the nar-rowest section of the bit. See page 10.

7. Question:Why was my drill bit sharpened improperly?

Answer:The most common cause of improper sharpening isimproper drill bit alignment.

Key causes are:

1. Drill point not pushed all the way to the Drill Stop.

2. Chuck not pushed all the way into the Alignment Port.

3. Drill not aligned in the Bit Clamps correctly.

In order to correct these problems be sure the Chuck is allthe way in the Alignment Port. The drill point must beagainst the Drill Stop and the Bit Clamps must be at thenarrowest part of the drill bit.

8. Question:Why is my split point uneven?

Answer: Page 15 shows a drill point that is undersplit and a drillpoint that is correctly split. To correct an uneven pointsplit, insert the Chuck into the Splitting Port and splitboth sides again. Push the Chuck into the Port until itstops. Repeat until the split sides are equal and look likethe correctly split bit shown above.

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Answer:This happens when the Heel on the bit is higher than theCutting Edge (negative relief). To correct this problem,follow the instructions in “Using the Variable Alignment toAdjust the Chisel and Relief Angle” on page 19.

You may have a specialty drill bit. Slow and Fast Spiral,Helix, Turbo Flutes, and Raised Margin drill bits are con-sidered specialty bits. If you’re are getting insufficientrelief on specialty bit types, try aligning all the way in the(+) setting on the alignment port. This will help improvethe sharpening on these types of bits.

4. Question:What can I do about flat spots on the bit point betweenthe Cutting Edge and the Heel?

Answer:The flat spots on a sharpened bit are the result of anincomplete or paused half-turn of the Chuck in the Sharp-ening Port. To correct, apply light, inward pressure androtate the Chuck smoothly while sharpening. Be sure tocomplete the half-turns.

5. Question:Why is the drill point off center?

Answer:If the tip of the drill bit appears to be sharpened off center,check the following items:• You may not have done an even number of half-turns

when you sharpened and one face of the bit wasground more than the other. Always use an even num-ber of half-turns when you sharpen.

• Make sure that there are no particles between theChuck Jaws and the drill bit that could hold it off cen-ter. Check the drill to ensure it is straight and free ofburrs.

• Make sure the bit is not loose in the Chuck.• During the sharpening process be sure to keep the

same pressure on each half-turn.

6. Question:Why is the chisel edge on my drill bit flat?

Answer:During the alignment process the Bit Clamps were grip-ping the high points of the drill bit. Realign the drill bitmaking sure that the Bit Clamps are located in the nar-rowest section of the bit. See page 10.

7. Question:Why was my drill bit sharpened improperly?

Answer:The most common cause of improper sharpening isimproper drill bit alignment.

Key causes are:

1. Drill point not pushed all the way to the Drill Stop.

2. Chuck not pushed all the way into the Alignment Port.

3. Drill not aligned in the Bit Clamps correctly.

In order to correct these problems be sure the Chuck is allthe way in the Alignment Port. The drill point must beagainst the Drill Stop and the Bit Clamps must be at thenarrowest part of the drill bit.

8. Question:Why is my split point uneven?

Answer: Page 15 shows a drill point that is undersplit and a drillpoint that is correctly split. To correct an uneven pointsplit, insert the Chuck into the Splitting Port and splitboth sides again. Push the Chuck into the Port until itstops. Repeat until the split sides are equal and look likethe correctly split bit shown above.

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9. Question:Why does the drill bit back up into the Chuck duringthe sharpening procedure?

Answer:Make sure the bit is tight in the Chuck before sharpening.Your Chuck may be dirty. Follow the steps for cleaning theChuck on page 25.

10. Question:When splitting, why don’t I hear a grinding sound?

Answer:The Chuck is not seated properly in the Splitting Port. TheChuck’s Sharpening Guide must line up with the SplittingGuide on the top of the Split Point Port. Firmly and slowlypush the Chuck into the hole until the grinding soundstops.

11. Question:Can I change a 135° drill bit into a 118° drill bit?

Answer:You can change the degree angle of any drill bit from 135°to 118°. The alignment and sharpening procedure willneed to be performed three or more times to remove theold angle and produce the new angle desired.

Drill Doctor MaintenanceAfter sharpening 20 to 25 drill bits, the drill bit grindingdust will accumulate in the grinding compartment. Grind-ing particles will promote wear in the Sharpening Portand Chuck, so cleaning on a consistent basis can add lifeto your machine. Before any maintenance or cleaning isperformed, be sure to disconnect your Drill Doctor.

Removing the Wheel Access CoverWith the Drill Doctor unplugged, use your nail or the tipof your finger to pull the Wheel Access Cover down. It willcome completely off for easy access. To close, insert theCover in the slots and snap it back into place.

Cleaning Your Drill DoctorWith the Drill Doctor unplugged, shake accumulateddrill bit grinding dust from behind the Wheel Cover into adisposable container. Remove dust particles around thewheel with a small, dry brush. Dispose of the containerand drill bit dust in a safe and environmentally approvedmanner. With a dry cloth wipe the inside and outside ofthe Sharpening Port to remove any grinding dust that mayhave accumulated. A standard 1" vacuum hose worksequally well.You can also use the Grit Tube attachment as shown onpage 16.

Cleaning the ChuckWith compressed air, blow out the Chuck from the Knobend or brush out with a small, dry brush.

Determining if Replacing the DiamondSharpening Wheel is RequiredYou can double the life of the Diamond Sharpening Wheelby reversing it before you replace it. The SharpeningWheel supplied with the Drill Doctor is designed to giveyou long and trouble free service, with an average of morethan 200 sharpenings for 3/32" to 1/2" drill bits.

The Diamond Sharpening Wheel may need to be changed if:• Sharpened drill bits burn or turn blue no matter how fast

or slow you rotate the Chuck.

• When touching the Sharpening Wheel (with the machineunplugged), the lower portion feels too smooth(nonabrasive).

• When sharpening the drill bit, it takes too many half-turns to sharpen.

Contact the store or dealer where you purchased the DrillDoctor, or contact Drill Doctor directly, to purchase areplacement Sharpening Wheel.

www.drilldoctor.com 2524 www.drilldoctor.com

9. Question:Why does the drill bit back up into the Chuck duringthe sharpening procedure?

Answer:Make sure the bit is tight in the Chuck before sharpening.Your Chuck may be dirty. Follow the steps for cleaning theChuck on page 25.

10. Question:When splitting, why don’t I hear a grinding sound?

Answer:The Chuck is not seated properly in the Splitting Port. TheChuck’s Sharpening Guide must line up with the SplittingGuide on the top of the Split Point Port. Firmly and slowlypush the Chuck into the hole until the grinding soundstops.

11. Question:Can I change a 135° drill bit into a 118° drill bit?

Answer:You can change the degree angle of any drill bit from 135°to 118°. The alignment and sharpening procedure willneed to be performed three or more times to remove theold angle and produce the new angle desired.

Drill Doctor MaintenanceAfter sharpening 20 to 25 drill bits, the drill bit grindingdust will accumulate in the grinding compartment. Grind-ing particles will promote wear in the Sharpening Portand Chuck, so cleaning on a consistent basis can add lifeto your machine. Before any maintenance or cleaning isperformed, be sure to disconnect your Drill Doctor.

Removing the Wheel Access CoverWith the Drill Doctor unplugged, use your nail or the tipof your finger to pull the Wheel Access Cover down. It willcome completely off for easy access. To close, insert theCover in the slots and snap it back into place.

Cleaning Your Drill DoctorWith the Drill Doctor unplugged, shake accumulateddrill bit grinding dust from behind the Wheel Cover into adisposable container. Remove dust particles around thewheel with a small, dry brush. Dispose of the containerand drill bit dust in a safe and environmentally approvedmanner. With a dry cloth wipe the inside and outside ofthe Sharpening Port to remove any grinding dust that mayhave accumulated. A standard 1" vacuum hose worksequally well.You can also use the Grit Tube attachment as shown onpage 16.

Cleaning the ChuckWith compressed air, blow out the Chuck from the Knobend or brush out with a small, dry brush.

Determining if Replacing the DiamondSharpening Wheel is RequiredYou can double the life of the Diamond Sharpening Wheelby reversing it before you replace it. The SharpeningWheel supplied with the Drill Doctor is designed to giveyou long and trouble free service, with an average of morethan 200 sharpenings for 3/32" to 1/2" drill bits.

The Diamond Sharpening Wheel may need to be changed if:• Sharpened drill bits burn or turn blue no matter how fast

or slow you rotate the Chuck.

• When touching the Sharpening Wheel (with the machineunplugged), the lower portion feels too smooth(nonabrasive).

• When sharpening the drill bit, it takes too many half-turns to sharpen.

Contact the store or dealer where you purchased the DrillDoctor, or contact Drill Doctor directly, to purchase areplacement Sharpening Wheel.

www.drilldoctor.com 2726 www.drilldoctor.com

Reversing or Replacing Your DiamondSharpening Wheel

1. Unplug your DrillDoctor, make suremachine is cool, thenremove wheel cover.

2. Turn the QuickChange Knob clock-wise while holdingthe Sharpening Wheelto keep it from turn-ing.

3.Remove the wheel,replace, and tightenthe Quick ChangeKnob by turningcounter-c lockwisewhile holding thewheel to keep it fromspinning.

Drill Doctor seen from below.

Drill Doctor seen from below.

Wheel Access Cover

AccessoriesOrder accessories through our website:www.DrillDoctor.com, or by contacting us at the phonenumber listed on the Warranty page (page 28), or at theretailer where you purchased your Drill Doctor.

WARNING:

The use of any accessory other than one rec-ommended in this user’s manual may presenta risk of personal injury.

3/32” to 3/4” Large Bit Chuck

Part # DA70100PF

3/32" to 1/2" Left-handed Bit Chuck (for 3/32"-1/2" reverse twist drill bits)

Part # DA02105PF

Standard Diamond Sharpening Wheel (180 grit)

Part # DA31320GF

Coarse Diamond Sharpening Wheel(100 grit)

Part # DA31325GF

www.drilldoctor.com 2726 www.drilldoctor.com

Reversing or Replacing Your DiamondSharpening Wheel

1. Unplug your DrillDoctor, make suremachine is cool, thenremove wheel cover.

2. Turn the QuickChange Knob clock-wise while holdingthe Sharpening Wheelto keep it from turn-ing.

3.Remove the wheel,replace, and tightenthe Quick ChangeKnob by turningcounter-c lockwisewhile holding thewheel to keep it fromspinning.

Drill Doctor seen from below.

Drill Doctor seen from below.

Wheel Access Cover

AccessoriesOrder accessories through our website:www.DrillDoctor.com, or by contacting us at the phonenumber listed on the Warranty page (page 28), or at theretailer where you purchased your Drill Doctor.

WARNING:

The use of any accessory other than one rec-ommended in this user’s manual may presenta risk of personal injury.

3/32” to 3/4” Large Bit Chuck

Part # DA70100PF

3/32" to 1/2" Left-handed Bit Chuck (for 3/32"-1/2" reverse twist drill bits)

Part # DA02105PF

Standard Diamond Sharpening Wheel (180 grit)

Part # DA31320GF

Coarse Diamond Sharpening Wheel(100 grit)

Part # DA31325GF

www.drilldoctor.com 2928 www.drilldoctor.com

Español

USA and Canada OnlySee Warranty Card insert for countries outside the USA and Canada.

Your Drill Doctor is warranted to be free of defects due to work-manship or design for 3 years from the purchase date. If yourDrill Doctor fails to operate, or if any operating problem occurs,contact Drill Doctor Technical Service at:

1-888-693-7455 (toll-free USA and Canada only)1-541-552-1301Please call 8:00 AM - 3:30 PM Pacific Time.

Do not return this product to the store where you purchased it.Do not attempt any service or repairs other than those suggestedby a Drill Doctor Technical Service Representative (TSR). Duringthe period of warranty, Drill Doctor will, at our discretion, repairor replace this product free of charge and refund postage or ship-ping charges providing that the following conditions are met:

1. A copy of the proof of purchase is provided.

2. The product has been operated for the purpose intended asdescribed in the operating instructions and has not beenabused or mishandled in any way.

3. The product has not been dismantled and no service orrepairs have been attempted other than those suggested by aDrill Doctor TSR.

4. The Return Goods Authorization number (RGA #) (assignedby the Drill Doctor TSR) is written on the shipping label.Please make certain to package items in such a way as toeliminate further damage during shipping. Ship via a trace-able carrier and properly insure the package.

No CODs are accepted. Unapproved shipping charges are non-refundable.

Complete and mail back the Warranty Registration & Cus-tomer Survey, or register online at:

www.DrillDoctor.com

Please Fill in the Following for Your Records.

Drill Doctor® Model #: __________ __________ __________

Date of Purchase: _______ / _______ / _______

Purchased from:_______________________________________

ÍndiceEnglish...............................................................1

Español ............................................................29

Familiarícese con su Drill Doctor® ........................34

Identificación de las brocas básicas ........................35

Partes de una broca ................................................35

Proceso de afilado de Drill Doctor® .......................36

Cómo elegir el ángulo de la punta de la broca en el

Modelo 500X.........................................................36

Modelo 750X.........................................................37

Alineación de la broca .............................................37

Afilado de la broca ..................................................40

Identificación de brocas correctamente afiladas.....41

Puntas hendidas......................................................43

Creación o sustitución de una punta hendida..........43

Identificación de brocas hendidas correctamente ...44

Tubo adicional para limadura ..................................45

Afilado de brocas de diferentes diámetros, longitudesy tipos................................................................46

Brocas grandes .................................................46

Brocas cortas y brocas más pequeña que 3.2mm(1/8 de pulgada) ................................................46

Brocas para mampostería..................................47

Uso de la Alineación Variable para ajustar el ángulode relieve y de cincel.........................................49

Uso de la Remoción de Material Variable (MTO)en el modelo 750X.............................................50

Preguntas y respuestas ...........................................51

Mantenimiento del Drill Doctor® ...........................55

Accesorios ...............................................................58

Garantía ..................................................................59

Français............................................................60

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DRILL DOCTOR MODEL 500X

USER REPLACEMENT PARTS

9

ITEM MANUFACTURER

PART NUMBER

DESCRIPTION

1 DA02100PF 1/2" CHUCK ASSEMBLY

2 DA70100PF 3/4" CHUCK ASSEMBLY

3 PP02142PF ACCESS COVER

4 DA31320GFSTANDARD DIAMOND SHARPENING

WHEEL (180 GRIT)

5 DA31325GFCOARSE DIAMOND SHARPENING

WHEEL (100 GRIT)

6 PP02342CF QUICK RELEASE WHEEL RETAINER

7 PP02344RF TAPERED QR SPRING

8 PP50120TF DD500X POINT ANGLE KNOB

9 PP41120PF GRIT TUBE

10 PP20144PF SHARPENING TUBE

11 SA50140CA COMPOUND/PIN ASSEMBLY

12 PP70100PF BLOW MOLD CASE

13 DA02105PF LEFT-HANDED CHUCK ASSEMBLY