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

The term used to describe a tool powered by compressed air is "pneumatic tool." Pneumatic tools utilize air pressure to operate, drawing on compressed air to create motion or force. This allows for high efficiency and effectiveness in various applications, particularly in industries such as construction, manufacturing, and automotive repair.

Pneumatic tools are often preferred for their power-to-weight ratio, speed, and ability to continuously operate without overheating, as the air supply can cool down the tool. They are commonly seen in applications such as nail guns, air wrenches, and spray guns, demonstrating their versatility and effectiveness in performing tasks that require force or speed.

Other types of tools mentioned do not rely on compressed air; electric tools run on electricity, manual tools are operated by human effort without mechanical assistance, and hydraulic tools use liquid pressure rather than air. These distinctions highlight the unique operational mechanism of pneumatic tools and reinforce why this term is specifically applicable.