Convenient Operation: The knockout set is fast and easy to operate. With the excellent cooperation of a drill bit and a driving bolt, you can easily get a clean and uniform hole. And the long plastic handle ensures zero sliding and effective force transfer, improving work efficiency.
AMZCNC Hydraulic Knockout Punch Electrical Conduit Hole Cutter Set KO Tool Kit 1/2 to 2 inch (8T(1/2"-2")), Alloy Steel