Greenlee Slug-Buster 735BB Manual Standard Round Knockout Punch Die Kit, 10 ga Capacity, For Use With Greenlee KRW-1 High Leverage Ratchet Wrench, 1/2 to 1-1/4 in Conduit/Pipe, Mild Steel
Greenlee 12350 Slug-Buster Knockout Punch Unit, 1-7/8-Inch : Amazon.ca: Tools & Home Improvement
iGeelee Ratchet Knockout Hole Punch Driver Kits 1/2 to 2 inch SLUG-Buster Knockout Electrical Conduit Hole Cutter Sets KO Tool Kit (CC-60) : Amazon.ca: Tools & Home Improvement
DOUBLE CHEN Ratchet Knockout Hole Punch Driver Kit 12 to 2 inch SLUG-BUSTER KNOCKOUT Electrical Conduit Hole Cutter Set KO Tool Kit,Don't Use for Stainless Steel Plate - Amazon.com
Greenlee Slug-Buster 7238SB Manual Knockout Punch Die Kit, 10 ga Capacity, For Use With Battery Powered/Hydraulic Ratchet Driver and 3/8 in and 3/4 in Draw Stud, 1/2 to 2 in Conduit/Pipe, Mild Steel
Greenlee® Slug-Buster® 737BB Manual Round Knockout Punch-Die Kit, 10 ga, 1-1/2 to 2 in, Mild Steel | SMC