The Mayhew Tools 21-pc Punch and Chisel Foam Set, No. 60210F, is made from alloy steel with a black oxide finish for corrosion resistance and durability. The chisels feature a sharp cutting edge, while the punches are precision CNC-machined. The set is made in the USA and comes with a lifetime warranty. It is organized in a custom-cut foam block with printed size markings for each tool.