Mayhew™ Punch and Chisel Set, Imperial, 1/8 to 3/8 in Chisel, 1/8 to 3/8 in Punch, 1-1/2 in Overall Length, 14 Punches, 5 Chisels, 19 pc, Hex Shank, Steel, Black Oxide. Mayhew™ 61019 Imperial Punch and Chisel Set, 1/8 to 3/8 in Chisel, 1/8 to 3/8 in Punch, 14 Punches, 5 Chisels, 19 pc