Knockout Die For Use With Tool Type Knockout Tools Knockout Punch Component Included Die Material Application Mild Steel Stainless Steel Maximum Sheet Metal Capacity-Steel 16 ga Nominal Hole Size 1 3/8 in Slug Type Splitting Punch Shape Round Number of Pieces 1 Includes Draw Stud No Exact Hole Diameter 1 19/50 in Inside Die Depth 1 1/4 in Series Exact