Hydraulic Knockout Punch Electrical Conduit Hole Cutter Set KO Tool Kit 1/2 to 4 inch
11-Ton Hydraulic Knockout Kit with Hand Pump and Slug-Buster® 1/2" - 4" | Greenlee
VEVOR Multiple Sizes Hydraulic Knockout Punch Set in the Knockout Punch Sets department at Lowes.com
Hydraulic Knockout Punch 15 Ton Capacity Capable of punching up to 4" Conduit Comes with slug breaking round punches 1/2" to 2-1/2" Conduit sizes Steel Case Hand pump unit connects to head
IBOSAD Hydraulic Knockout Hole Punch Driver Kit 1/2 to 2 inch Electrical Conduit Hole Cutter Set KO Tool Kit Metal Sheet Puncher