Punch and Die Set Punch Size 1/2 in 1/4 in 1/8 in 3/16 in 3/4 in 3/8 in 5/16 in 5/8 in 7/16 in Inside Dia 1/2 in 1/4 in 1/8 in 3/16 in 3/8 in 5/16 in 5/8 in 7/16 in 8 Number of Punches 9 Punch Type Round Construction Self-centering Punch and Die Set Function Cuts Steel Brass Copper Aluminum Rubber and Plastic