Greenlee 730BB-1-3/8 Standard Round Knockout Punch Unit, 1-3/8-Inch : Amazon.ca: Tools & Home Improvement
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 - 11 Piece, 1/2 to 1-1/4″ Punch Hole Diam, Manual Knockout Set - 04226320 - MSC Industrial Supply
Punch Unit - 2-1/4" | Greenlee
3" Stainless Steel Punch Unit | Greenlee
50124811 Greenlee | Greenlee Punch and Die Tool, 25.0mm, Circular, Hand Operation | 477-8791 | RS Components
Knockouts | Greenlee
Hydraulic Knockout Punch Set, SC | Greenlee
Greenlee Standard Punch and Die Set for 2-1/2" through 4" Conduit | Mid Canada Fasteners & Tools Ltd.
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