air ratchet

These include: compressors, brad nailers, air ratchets, die grinders, paint sprayers, etc.

There are two main types of power wrenches: impact wrenches and air ratchet wrenches or pneumatic ratchet wrenches.

An air ratchet wrench is very similar to hand-powered ratchet wrenches in that it has the same square drive, but an air motor is attached to turn the socket drive.

A recent design combines an impact wrench and an air ratchet, often called a "reactionless air ratchet" by the manufacturers, incorporating an impact assembly before the ratchet assembly.