IRWIN Stepped Conical Bit 3M with 7 Holes (6 mm - 18 mm), increase every 2 mm

- Automatic centering point does not slip or leak, the initial Biting is eliminated;
- Chromium-vanadium steel, the Bit body is hardened up to 56 hrc for increased durability;
- Double grooved cut edge with double rectified for extra capacity for chip evacuation, round holes and maximum control;
- Ideal for Biting holes in thin materials, including mild steel, copper, brass, aluminum, plexiglass, plastic, wood and laminates;
- Flat rod to prevent the Bit from falling from the Bit holder;
- Sizes laser engraved inside the brooch for a simple and permanent identification of the hole.