Greenlee - 7 Piece, 22.5 to 43.2mm Punch Hole Diam, Hydraulic Knockout Set - 04224390 - MSC Industrial Supply
Greenlee Hydraulic Punch Driver Set 1/2 to 4 In. 7310SB from Greenlee - Acme Tools
Greenlee 2-5/8 Inch Hole Length x 1.312 Inch Wide, Rectangular Punch Unit Hydraulic and Manually Operated, 10 Gauge Max in Mild Steel 60053 - 04225785 - Penn Tool Co., Inc
Greenlee 7307 | Hydraulic Knockout Kit, 1/2 To 2 Inch Size | 1XGB6 | Raptor Supplies Worldwide
Greenlee Manual Knockout Punch Set 7238SB from Greenlee - Acme Tools