using hand tools 2.ppt

Upload: juderianne

Post on 04-Apr-2018

223 views

Category:

Documents


0 download

TRANSCRIPT

  • 7/30/2019 Using Hand Tools 2.ppt

    1/31

  • 7/30/2019 Using Hand Tools 2.ppt

    2/31

    Objectives 1. Discuss how to select hand tools. 2. Identify and explain how to use layout

    tools.

    3. Identify and explain how to use cutting,shaping, and boring tools. 4. Identify and explain how to use holding

    and turning tools.

    5. Identify and explain how to use drivingand wrecking tools.

  • 7/30/2019 Using Hand Tools 2.ppt

    3/31

  • 7/30/2019 Using Hand Tools 2.ppt

    4/31

    Objective 2 What tools are needed to measure and mark materials inlayout? A layout tool is a tool used to measure or mark wood, metal,

    and other materials. Rulers can be one foot, yardsticks, and meter sticks. Wooden folding rules are generally 6 foot long and their

    rigidness makes them useful in making vertical measurements. Locking tape measurescome in lengths ranging from 6 foot to

    30 foot, a width of to 1 inch, they lock open, and use a springto retract the tape with the push of a button.

    100 ft wind up tape is useful in building layout work where

    distances over 30 ft must be measured Standard English measurement units of inches, feet and yards

  • 7/30/2019 Using Hand Tools 2.ppt

    5/31

  • 7/30/2019 Using Hand Tools 2.ppt

    6/31

    Objective 2 cont. Marking tools Carpenters pencil is flat-sided, more durable, and is shaped

    with a utility knife. Keel or carpenters crayon is similar to a grease pencil and may

    show up better in some types of work than a pencil

    Marking gauge uses a ruler with a wooden clamping block and amarking pin to mark lines parallel to the edges of material

    Chalk line is a 50 to 100 foot string wound inside a box filledwith powered chalk dust

    Scratch awl is a pointed metal tool with a handle used to markmetal

    Center punch is a punch ground to a 60 degree angle point andis used to mark a metal location prior to drilling

  • 7/30/2019 Using Hand Tools 2.ppt

    7/31

  • 7/30/2019 Using Hand Tools 2.ppt

    8/31

    Objective 2 cont. Squares-a tool used to mark square straight lines forcutting, laying out angles, etc Framing square has a blade which is 24 inches long and 2 inches

    wide and a tongue that is 16 inches long and 1 inches wide Try square is a rigid square like the framing square only

    smaller, commonly 8 inches long Sliding T-bevel is adjustable so that it can be set at any angle

    from 0 to 180 degrees Speed square is a small triangular square that can be used to

    mark both square and angled cuts Combination square can be used as a straightedge, a marking

    gauge, a depth gauge, a 90 degree square, a 45 degree anglemarker or a level

  • 7/30/2019 Using Hand Tools 2.ppt

    9/31

  • 7/30/2019 Using Hand Tools 2.ppt

    10/31

    Objective 2 cont. Level is used to determine whether a surface isflat (perfectly horizontal) or plumb (perfectlyvertical) Spirit level include the 9 in, 18 in, 24 in, and 48 in Digital level is a battery operated electronic level that

    beeps when it is perfectly level or plumb Line level is a small level attached to a line to guide work

    such as laying concrete blocks Plumb bob is a pointed weight attached to a string used

    to determine a plumb or vertical line or to find a pointdirectly beneath an overhead point

  • 7/30/2019 Using Hand Tools 2.ppt

    11/31

  • 7/30/2019 Using Hand Tools 2.ppt

    12/31

    Objective 3 What tools are needed to cut, shape, and bore? Crosscut saw is used to cut across the grain of wood. Ripsaw is used for sawing with the grain Keyhole or compass saw is a 12 to 14 inch long narrow

    saw that starts at about inch wide at the handle andtapering to a point at the end of the blade

    Coping saw is a small saw with a very thin blade of fineteeth generally used in a miter box to cut molding andtrim

    Backsaw is a finish carpentry saw with fine teethgenerally used in a miter box to cut molding and trim

  • 7/30/2019 Using Hand Tools 2.ppt

    13/31

  • 7/30/2019 Using Hand Tools 2.ppt

    14/31

    Objective 3 cont Shaping tools A plane is a tool used to smooth surfaces and change the size

    or shape of wood materials Jack plane is usually 14 inches long and used for smoothing long

    surfaces by shaving with the grain of the wood

    Block plane is usually 6-6 inches long and is used forsmoothing the ends of boards by cutting across the grain Wood chisel is a wedge-shaped cutting tool used to cut notches

    and shaving off excess wood Wood rasp (wood file) is used for smoothing rough work and

    for removing small amounts of wood on curved and irregularshaped objects

    Rasplane is a wood rasp in the shape of a plane

  • 7/30/2019 Using Hand Tools 2.ppt

    15/31

  • 7/30/2019 Using Hand Tools 2.ppt

    16/31

    Objective 3 Boring tools Hand drill is a device with gears that drive its

    bit much faster than the handle turns

    Push drill is also called an automatic drill Brace is the device for holding and turning an

    auger bit

    Auger bit has a square tang to fit into thebrace

  • 7/30/2019 Using Hand Tools 2.ppt

    17/31

  • 7/30/2019 Using Hand Tools 2.ppt

    18/31

    Objective 4 What hand tools are used for holding and turning? C-clamp-shaped like letter C and comes in sizes

    from 2 to 10 inches

    Bar clamp-ranges from inches to six ft. Hand screw clamps-requires 2 hands for

    tightening and can span up to 10 inches Spring clamps-tighten by squeezing the handle

    Strap clamp-may be ratchet tightened

  • 7/30/2019 Using Hand Tools 2.ppt

    19/31

  • 7/30/2019 Using Hand Tools 2.ppt

    20/31

  • 7/30/2019 Using Hand Tools 2.ppt

    21/31

  • 7/30/2019 Using Hand Tools 2.ppt

    22/31

    Obj. 4 Cont. Combination pliers-have 2 sizes and areused to hold materials, turn bolts, and cutwire

    Needle nose-used to retrieve items, placeitems in tight quarters and twist wire Diagonal side cutting pliers-are used to cut

    wire

    Locking pliers-called vise grips areadjustable and can be locked on a nut, boltor pipe

  • 7/30/2019 Using Hand Tools 2.ppt

    23/31

  • 7/30/2019 Using Hand Tools 2.ppt

    24/31

    Obj. 4 cont Adjustable jaw wrenches-cresent wrenches are sized bythe length of the handle and be adjusted to fit various

    sizes Fixed jaw wrenches-box end, open end, or combo of both Box-end wrenches-come as either 6 or 12 point and are used

    when the nut is very tight

    Open-end wrenches-faster to use when loosening nuts andare generally offset to a 15 degree angle Combination wrench-gives the advantage of both designs Socket sets-6 or 12 pointscontains ratchet and breaker

    bar Allen wrenches-hex shaped and used to turn set screws

    Pipe wrenches-adjustable, come is several sizes and areused with pipe and large nuts

  • 7/30/2019 Using Hand Tools 2.ppt

    25/31

  • 7/30/2019 Using Hand Tools 2.ppt

    26/31

  • 7/30/2019 Using Hand Tools 2.ppt

    27/31

    Objective 5 What hand tools are used for driving andwrecking?

    Curved claw hammer-curve made to remove bentnails

    Straight claw hammer-used to rip boards Wooden mallets-used with wood chisels with a

    metal shank Rubber mallets-useful when there is a concern of

    damaging the material that is being driven Sledge hammer-used for driving stakes, wrecking

    materials, and etc

  • 7/30/2019 Using Hand Tools 2.ppt

    28/31

  • 7/30/2019 Using Hand Tools 2.ppt

    29/31

  • 7/30/2019 Using Hand Tools 2.ppt

    30/31

    References

  • 7/30/2019 Using Hand Tools 2.ppt

    31/31