Really a must have if your using an air hammer. I don't use them much for body work. Great for thumping out suspension components and probably smoothing out some panels for bondo work.

This little hammer bit saved the day , will knock loose any rusted bolts and ball joints

great for U joint replacement ... knocking out old rusty caps

It is a must have.

It works well in any situation where you are going to beat something with a 16 oz hammer repeatedly until you give yourself carpal tunnel. In my situation, it did not fix my problem, but that was not the fault of the chisel. I was building a graveyard fence and the pickets were solid quarter inch steel bar. I was hoping to spread the tips to hold the cast iron finials in place as I was not wanting to try to weld cast iron to steel. I used one finial as a pattern and beat the ends of the pickets until it just barely did not fit, then I would hammer them all down in place and between that and gravity I figured they would hold well enough with no ugly welding. However, each cast iron finial was a little different from the one I used as a pattern and some would fit too tight and I could not hammer them on, and others would fit too loose. I had to grind the mushroomed ends back down and weld them after all so they would all look even. As it turned out, using a mig welder and low amperage and a fast wire speed, I was able to adequately weld the finials in place without melting them down. Cast iron apparently has a lower melting point than steel so you can't get much penetration in the steel before the cast iron slags out. Anyway, I digress. The hammer worked, just not for this type job.