High quality chrome vanadium steel chisels for cutting shaping wrought iron cast iron steel brass bronze copper and aluminium cutting bolts nuts and rivets punches are also made from chrome vanadium steel to precise specifications and are used for marking centre lines hole locations and pilot drill starting points set of 12 contains 10 12 and 16mm 38 12 and 58 in cold chisels15 3 4 5 6 and 8mm 116 18 532 316 14 and 516 pin punches2 6 and 8mm 332 14 and 516 in centre punches