Knockout Draw Stud For Use With Tool Type Greenlee QuickDraw Manual-Hydraulic Legacy 1/2 in Conduit Size Slug-Buster or Standard Round Knockouts 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 3/8 in Draw Stud Length 2 3/4 in Finish Steel Series Knockout Draw Stud