General description This External Deburring Chamfering Tool set includes 3 pieces designed for effective deburring and chamfering of various drill bits. Made from high-quality hard alloy, these tools offer high strength, hardness, and a long service life. Their unique design prioritizes safety, protecting your hands while preventing sparks or burns and avoiding damage to the tools. Technical specifications Material: High-quality hard alloy Function: Quickly repairs damaged screws and tightens nuts Compact size for easy portability Usage Use at the lowest drilling speed and apply pressure to remove burrs Ideal for removing burrs on pipes or threaded rods Effective on stainless steel, hardened steel, mild steel, copper, brass, aluminum, fiberglass, wood, and plastic Can also be used as a corkscrew