Knockout Draw Stud, For Use With Tool Type 3/4 in to 2 in Conduit Size Slug-Buster or Standard Round Knockouts, Greenlee Quick Draw Manual-Hydraulic, Knockout Punch Component Included Draw Stud, Material Application Aluminum, Brass, Copper, Fiberglass, Mild Steel, Plastics, Stainless Steel, Maximum Sheet Metal Capacity-Steel 12 ga, Punch Shape Round, Number of Pieces 1, Includes Draw Stud Yes, Draw Stud Diameter 3/4 in, Draw Stud Length 4 3/4 in, Finish Steel, Series Knockout Draw Stud