Dasco Pro 3-Piece Heat Treated Penn Valley Penn Valley True Value Hardware Hardwarehead Cold Chisel Set includes three chisels with different tip widths: 5/16", 5/8", and 3/4". The chisels are made of heat-treated steel for durability and have a beveled tip for easy cutting. The set comes with a lifetime guarantee. The Dasco Pro 3-Piece Cold Chisel Kit is bound to be popular with both the professional and homeowner alike. The chisel is designed to shear nuts, bolts and rivets. Meets or exceeds ANSI standards. Made in the USA.