Greenlee Textron - Greenlee 1431AV 3-1/2" Hole 3" Conduit Round Knockout Punch

Round standard metal punch units are complete units consisting of punch, die and draw stud. Use with battery-powered, hydraulic, ratchet or manual drivers. Properly assembled through pilot holes, they will make clean, fast and accurate holes. Features: All Greenlee knockout tools are made in the USA; 3.000 Round Replacement Punch; Alignment Markings improve punching accuracy and productivity when making holes.; Punches and dies are marked with catalog numbers and sizes for quick part identification. - Application: Use with battery-powered, hydraulic, ratchet or manual drivers. Capacity up to 10 gauge mild steel. Use on mild steel, aluminum, fiberglass and plastic.