Knockout Punch, For Use With Tool Type Ratchet, Knockout Punch Component Included Punch, Material Application Stainless Steel, Maximum Sheet Metal Capacity-Steel 16 ga, Nominal Hole Size 7/8 in, Slug Type Splitting, Punch Shape Round, Number of Pieces 1, Includes Draw Stud No, Exact Hole Diameter 22/25 in, Series Exact