Punch and Die Set Punch Size 1 in 1-1/4 in 1-1/8 in 7/8 in Inside Dia 1 in 1-1/8 in 3/4 in 7/8 in 4 Punch Material Tool Steel Number of Punches 4 Punch Type Round Construction Base Top and Punches are Made of a Hardened and Ground A-2 Tool Steel Function Cuts Steel Brass Copper Aluminum Rubber and Plastic