Made of heat-treated, high carbon American steel. Set contain (1) 402 3/8 in x 5-5/8 in cold chisel, (1) 406 5/8 in x 6-3/4 in cold chisel, (1) 532 7/16 in x 5 in center punch, (1) 562 5-1/2 in long starter punch and (1) 582 1/8 in x 5-1/2 in pin punch. | Dasco Pro 5-Piece Punch and Chisel Set