Capacity: Mild steel up through 10 gauge (3.5 mm).Application: Punch mild steel, aluminum, fiberglass and plastic.Hole Sizes/Conduit Sizes - Hole size is outside diameter of US conduit sizes. Example: 1/2"" conduit size punch actually makes a 7/8"" hole.Pg Sizes: European standard pipe sizes.ISO Sizes: International Standards Organization pipe sizes.Operation: Battery, hydraulic, ratchet or manual drivers. When used with ratchet, hydraulic or battery drivers, buy the punch and die only; the draw stud is part of the driver kit. 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.
