Round standard metal punch units are complete units consist 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;Use with Greenlee punch model number 437AV;Can be used on mild steel up to 10 gauge

• Greenlee 438AV Standard Round Knockout Replacement Die, 2-1/4-Inch

Greenlee 438AV Standard Round Knockout Replacement Die, 2-1/4-InchGreenlee