tools selection & safety
DESCRIPTION
TOOLS SELECTION & SAFETY. TOOL SAFETY. Anytime you work with tools safety must be your primary concern. A few general rules to keep in mind are: - PowerPoint PPT PresentationTRANSCRIPT
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TOOLS & SAFETY
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TOOL SAFETYAnytime you work with tools safety must be your primary concern. A few general rules to keep in mind are:
1. Protective glasses or goggles should be worn whenever power tools are in use; and when chiseling, sanding, scraping, or hammering overhead, especially if you wear contact lenses.
2. Wear ear protectors when using power tools, since some operate at noise levels that damage hearing.
3. Be careful of loose hair and clothing, so they don't get caught in tools.4. The proper respirator or face mask should be worn when sanding or sawing or
using substances with toxic fumes.5. Keep blades sharp. A dull blade requires excessive force, can slip, and cause
accidents.
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6. Always use the appropriate tool for the job.7. Repair or discard tools with cracks in the wooden handles, or chips
in the metal parts, that could fail and cause injury.8. Don't drill, shape, or saw anything that isn't firmly and properly
secured.9. Take care in storing oily rags, which can spontaneously combust.10. Don't abuse your tools.11. Keep a first aid kit on hand.12. Don't work with tools if you are tired or in a hurry. That's when
most accidents occur.13. Read the owner's manual for all tools and know the proper use of
each.14. Keep all tools out of reach of small children.15. Unplug all power tools when changing settings or parts.
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HAMMERS
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HAMMERS
CLAW BALL PEIN
MALLETCLUB
SLEDGENAILER
General nailing Shaping metal
Light demolition
Heavy demolition
Hitting soft objects
Power nailing
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Screwdrivers
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SCREWS
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NAILS
Small projects
Small head is easy to hide.
Used for floors and other areas where the nail head can be visible.
Flat head
Broad flat head
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United States Penny SizesIn the U.S., the length of a nail is designated by its “penny size”, written with a number and the letter “d”; for example, 10d for a ten-penny nail. A larger number means a longer nail.
Penny sizes originally referred to the price for a hundred nails in England in the 1400’s. The “d” is an abbreviation for denarius, A Roman coin similar to a penny.
2d penny = 1”3d penny = 1-1/4”4d penny = 1-1/2”5d penny = 1-3/4”Etc.
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SAW TYPES
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COPING SAW
Used to cut intricate patterns and shapes in wood.
HAND SAWS
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HACKSAW
Thin-bladed saws used to cut metal or plastic.
HAND SAWS
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Keyhole Saw
Used to cut holes into soft wood or drywall.
HAND SAWS
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RIP AND CROSSCUT SAWS
HAND SAWS
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MITER SAWSBACK SAWS
Back saws have thinner blades with finer teeth that can only cut so deep. They are used with a “miter box” which controls the angle and depth of the cut.
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CIRCULAR SAWPOWERED SAWS
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TABLE SAWSPOWERED SAWS
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RADIAL ARM SAWPOWERED SAWS
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CHOP SAWPOWERED SAWS
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CONCRETE SAWPOWERED SAWS
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JIGSAWRECIPROCATING SAWS
Straight or curved cuts
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SAWZALLRECIPROCATING SAWS
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SCROLL SAWRECIPROCATING SAWS
Can cut almost any shape in wood or plastic.
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BAND SAW
BAND SAWS
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CHAINSAW
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TOOL QUIZ
At your tables is a variety of tools. I will give you the tool’s name or a job that needs done and your table will select the correct tool.
READY?
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Things that ANNOY Mr. Johns
When students:•don’t close glue lids and it ruins the whole bottle•think it’s funny to puncture a glue bottle.•Use hot glue inappropriately.•Break rulers just for fun.•Don’t bring their agenda to class.•Don’t clean up or put things away.•Steal or destroy others’ projects.•Don’t give every project their all.