AMZCNC 15 Ton 1/2 Inch to 4 Inch Hydraulic Knockout Punch Driver Tool Kit with 10 Dies Hole Complete Tool Electrical Conduit Hole Cutter Set (15T(1/2"~4"))
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.