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 Punch Material Tool Steel Number of Punches 9 Punch Type Round Construction Hardened and Ground A-2 Tool Steel Function Stainless and Blue Tempered Shim up to .010 in Thick