An air chisel is a cutting and driving tool powered by compressed air that can be used to remove rust and faulty exhaust system parts, and for a variety of other tasks in the automotive shop. The extra force provided by the compressed air makes it more efficient than a hand chisel and hammer.

Air chisels can be fitted with a variety of bits depending on the job at hand, including standard chisels, panel cutting chisel, ripping chisel, taper punch, and spot weld breaker.