Knockout Punch Set, For Use With Tool Type Ratchet (1 in), Knockout Punch Component Included Punch, Die and Draw Stud, Material Application Aluminum, Brass, Copper, Fiberglass, Mild Steel, Plastic, Maximum Sheet Metal Capacity-Steel 10 ga, Nominal Hole Size 57/64 in, Slug Type Splits in Half; Falls Free from Die and Stud, Punch Shape Round, Number of Pieces 3, Includes Draw Stud Yes, Draw Stud Diameter 7/16 in, Draw Stud Length 4 in