description slug-buster knockout punch - 3/4 in. conduit size punch perfectly round holes in electrical boxes and panels easily and quickly for your conduit using the manual greenlee? punch unit, conduit 3/4-inch. this tool unit features a slug buster? design that works by creasing the slug and eventually splitting it during the knockout process, making removing the slug easy. the punch, die and draw stud in the greenlee 3/4-inch conduit punch unit boasts heat-treated steel construction for durability. the punch unit has a black oxide coating as well, which helps protect it from rust and corrosion. this versatile unit works with several different materials, including plastic, fiberglass, aluminum and 10 gauge mild steel. to suit most us conduit sizes, the greenlee slug buster knockout punch delivers a hole size of 1.115 inches. california proposition 65 warning. features greenlee 3/4-inch conduit punch unit includes draw stud, punch and die slug buster design split slug in half for easier removal greenlee conduit punch made of heat-treated steel for durability black oxide coating helps provide corrosion resistance punches through mild steel up to 10 gauge thick and other materials for versatility greenlee slug buster knockout punch produces 1.115-inch hole that suits most us conduit sizes limited warranty, made in the usa specifications acme tools brand name greenlee acme tools part number 7211bb-3/4 assembled weight (lbs) 0.8 california proposition 65 warning required yes color / finish black oxide country of origin united states globaltradeitemnumber (gtin) 00783310319634 internal supplier part # 7211bb-3/4 internet product code (ipc) 2c71a1e8dce kit no knockout size 3/4" knockout type manual manufacturer warranty greenlee warrants their products will be free of defects in materials and workmanship. material heat treated steel package weight 1 package weight (lbs) 1 upc 783310319634