Use of Hand Tools In Agricultural Mechanics Shops Pender HS Mr. Herren Ag. Mech. I

General Rules Hand tools used for cutting should be sharp to improve safety and efficiency. Using the proper tool for the job can reduce or eliminate injuries. Fine or small teeth on a saw blade make a smoother cut, but coarse or large teeth cut faster.

Tools and Their uses Adjustable wrench is used to turn various sizes nuts and bolts. Brick trowel is used to place and spread mortar. Ball peen hammer is used to hammer metal objects such as punches, chisels, or parts of small engines.

Tools and their uses Cold chisel is used to cut metal. Combination square is used to mark 45° and 90° angles. Combination wrench is used to turn both hex and square nuts. Concrete float is used to level concrete. Coping saw is used to cut curves in wood.

Tools and their uses Countersink is used to flare the top of a hole to recess the head for a flathead screw or bolt. Crosscut saw blade is used to cut across the grain of wood. Hacksaw is used to cut metal, and there should be at least three teeth in contact with the metal.

Tools and their uses Long nose pliers are used to reach into recessed areas. Measuring tools for wood are usually divided into 16 parts per inch or 1/16ths. Miter saw is used to cut angles. Nail hammer is used to drive nails to fasten one board to another.

Tools and their uses Ripping hammer is used to remove wood and to drive nails. Rip saw blade is used to cut with the grain of wood. Slip joint pliers are used to hold various sizes of materials. Try square is used to mark 90° angle.

Tools and their uses T bevel is used to find and transfer various angles. Wire strippers are used to remove insulation from electrical wires, to gauge wires sizes, and to crimp terminals. Wrecking bar is used to rip and pry wood. Vise grip pliers are used for extra firm holding or gripping.

Tool Classifications Layout tools Examples Try square Bevel Carpenter’s square Level Calipers Tape measure

Tool Classifications Cutting tools Examples Tin snips Hacksaw Wood chisel Files Handsaw Smoothing plane Single bit axe

Tool Classifications Boring tools- used to make holes Examples Bit brace Auger bit Twist drill Masonry drill Power drill

Tool Classifications Driving tools- used to move another tool or object Examples Claw hammer Sledge hammer Mason’s hammer Rubber mallet Center punch Pin punch

Tool Classifications Holding tools- used to grip other objects Examples C clamp Spring clamp Long nose pliers Lever wrench pliers Bench vise

Tool Classifications Turning tools- used to turn nuts, bolts, etc. Examples Screwdrivers Combination wrench Speed handle Ratchet handle

Tool Classification Digging tools- used to move earth Examples Garden rake Hand trowel Cultivator Spading fork

Tool Classification Other tools- tools that do not fit in any other category. Examples Fencing tool Brick trowel Pry bar

Fastener A fastener is a device used to hold two materials together.

Types of Fasteners Nails – driven into material it holds Nail info Nail length is referred to by pennies Nail types Common Box Finishing Spike Cut

Types of Fasteners Screws- fasteners with threads that bite into the material it holds. Screws are classified by: The material they hold What they are made from Shape of their heads Type of tool needed to turn them

Types of Fasteners Bolts- a fastener with a threaded nut used to hold materials together from both sides. Types Machine Carriage Stove plow

Types of Hardware Hinges- an object that pivots and permits a door to swing back and forth. Types Butt hinge Strap hinge T hinge