What term is used to describe a tool that is powered by compressed air?

The term for a tool powered by compressed air is pneumatic tool. Pneumatic tools utilize compressed air to drive their operation, which allows for a variety of functions such as drilling, sanding, and fastening. These tools are often lightweight, provide high power output, and can operate continuously as long as there is a supply of compressed air.

This makes them particularly useful in both industrial and automotive applications, where efficiency and power are critical. While electric tools are powered by electricity, hand tools primarily rely on manual operation without any external power source, and hydraulic tools use pressurized fluid for operation. The distinction lies in the source of power; pneumatic tools specifically harness the energy from compressed air.