Greenlee 7306 Hydraulic Knockout Punch Driver Set uses hydraulic power to drive knockout punches from 1/2 in. up to 3 in., enabling clean, round holes in metal panels and electrical enclosures. It is used in electrical installations to create knockout openings for conduit fittings and other hardware that require precise hole sizes. The model number 7306 identifies this specific Greenlee hydraulic knockout punch driver kit within the manufacturer’s lineup.
