Knockout Draw Stud For Use With Tool Type Legacy 3/4 in to 1-1/4 in Conduit Size Slug-Buster or Standard Round Knockouts Ratchet (1 in) Knockout Punch Component Included Draw Stud Material Application Aluminum Brass Copper Fiberglass Mild Steel Plastic Maximum Sheet Metal Capacity-Steel 10 ga Punch Shape Round Number of Pieces 1 Includes Draw Stud Yes Draw Stud Diameter 3/4 in Draw Stud Length 3 1/4 in Finish Steel Series Knockout Draw Stud