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Definitions (Section 4)

Tool, machine. A powered mechanical device, typically used to fabricate metal components of machines by the selective removal of metal. The term machine tool is usually reserved for tools that use a power source other than human movement, but can be powered by people if appropriately set up. Examples of machine tools are drills, gear shapers, hones, lathes, milling machines, and grinders.

Tool, non-sparking. A tool made of metals such as brass, bronze, Monel metal (copper-nickel alloy), copper-aluminum alloys (aluminum bronze), copper-beryllium alloys (beryllium bronze), and titanium, intended to minimize sparking.

Tool, portable. A hand-held tool, either operated by hand or a power source:

1. Tool, hand. A device for doing a particular job that does not use a motor, but is powered solely by the person using it. Examples are almost endless, from general tools like the hammer to specific tools like calipers.
2. Tool, power. A tool with a motor. The addition of the motor reduces the work that the operator has to do and sometimes makes it possible for the operator to do things that are difficult or impossible to do by hand. Common power tools include the drill, various types of saws, the router, the electric sander, and the lathe. All of these tools have manual equivalents.

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