Knockout Punch Set, For Use With Tool Type Ratchet; Manual Hydraulic, Maximum Sheet Metal Capacity-Steel 10 ga, Includes Ratchet No, Material Application Aluminum, Brass, Copper, Fiberglass, Mild Steel, Plastic, Stainless Steel, Slug Type Falls Free, Splitter, Number of Punch/Dies Sets 4, Knockout Sizes Included 1/2 in, 3/4 in, 1 in, 1 1/4 in, Nominal Hole Size 7/8 in, 1 1/8 in, 1 3/8 in, 1 11/16 in, Punch Shape Round