The Mayhew Steel Products ProPneumatic 4-pc Heavy Duty Tool Set, No. 37326, is designed for an array of niche automotive applications. The set includes a cold chisel, rivet buster, hammer and taper punch. All are made of an alloy steel that has been hardened and tempered and feature a 0.498 Turn Type Parker Shank. The tools are made in the U.S.A., back by a lifetime warranty and offer a black oxide finish that helps prevent corrosion and rust. For easy access and storage, the tools come in a nylon carrying case.