Glossary of Terms & Safety Symbols

(Including diamond wheels) – A rotating accessory designed to grind, cut, or remove stock from various materials such as metal or concrete. Here are some wheels that are most frequently encountered:

Type 1A Wheel (ISO 41) – A disc shaped wheel intended for cutting by the periphery of the wheel.

Type 11 Wheel – A cup shaped wheel intended for grinding by the face of the wheel.

Type 27 Wheel – A saucer/center depressed shaped wheel intended for grinding by its periphery or the face of the wheel.

(Amps/Rated Amperage) – A measure of the flow of electric current. If you think in terms of water through a hose, amperage would be a measure of water volume flowing through the hose. As it applies to electric power tools, “Rated Amperage” is how many amps the tool uses when tested under a specified condition. Rated amperage is useful in choosing the correct extension cord gauge and length. (refer to the tool’s instruction manual)

A device incorporated into some power tools intended to minimize the effects of kickback (see Kickback).

A device with teeth intended to permit motion in one only direction, and helps minimize the effect of kickback. (See “Anti-Kickback Device”.)

See Guard

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

An attachment to tools designed to contain wood or metal chips, and sawdust, and help keep them away from the operator.

A restraining device used to hold a workpiece in place while you work on it.

See Guard.

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.