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Module 4 Trade Terms

Horizontales
A drill bit that includes steps which enable the user to cut holes in metal to a desired diameter.
The end of a circular saw shaft where the blade is mounted.
An electric power supply when the current flows in one direction only.
A rating that describes the maximum amps a battery can provide continuously for up to 60 minutes.
Protection against short circuits
A bit or drill used to set the head of a screw at or below the surface of the material.
A clamping device that holds an attachment.
A granular, sand-like material used to make sandpaper and similar materials abrasive.
A substance, such as sandpaper, that is used to wear away material.
Moving backward and forward on a straight line.
A drill bit that uses a lead screw to pull the larger rear portion of the bit into the wood.
Verticales
A small lever, switch, or part that can be used to activate a locking catch or spring to hold a power tool trigger in the operating mode without finger pressure.
The common power supplied to most all wired devices, where the current reverses its direction many times per second.
A small, T-shaped steel piece used to open and close the chuck on power drills.
A drill bit with a spiral cutting edge for boring holes.
A circuit breaker designed to protect people from electric shock and to protect equipment from damage by interrupting the flow of electricity if a circuit fault occurs.
One complete charge and discharge cycle for a rechargeable battery.
A safety attachment used to prevent whiplashing in hoses when they are inadvertently uncoupled.
The smooth part of a drill bit that fits into the chuck.
A measurement of the power the tool can deliver.
A very hard material made of tungsten carbide and heavy metals such as cobalt. Commonly backe on to the tips of masonry bits and to the edges of saw blades.
A drill bit with a carbide tip designed to penetrate materials such as stone, brick, or concrete.
A drill bit designed for use in wood, or similar soft material, designed so it allows it to drill a flat-bottomed blind hole.
The rotational speed of a motor or shaft, based on the number of times it rotates each minute.