Air Hammer - Heavy Duty IR121-Clearance

I've had a 121 for many years and for the price range it is a very good introductory tool. It has enough power to install u joints, wheel studs and will knock out most bolts . However unless the chisel that you are using is perfectly sharp it dosn't have enough power to go through a bolt or to use a tailpipe/muffler attachtment. I don't recommend getting any thing smaller or cheaper as this is just barely good enough for light duty automotive work. If you don't know of a good chisel brand I've had excellent performance from S and G tool aide. Also the quick release chuck is a must unless you have VERY big thums.