General description This External Deburring Chamfer Tool set includes 3 pieces designed for effective deburring and countersink removal on various drill bits. Made from high-quality hard alloy, these tools offer high strength, hardness, and durability, ensuring a long service life. The unique design prioritizes safety, protecting your hands while preventing sparks or burns, and avoiding damage to tools. Their compact size allows for easy portability. Technical specifications Material: High-quality hard alloy Function: Quickly repairs damaged bolts and tightens nuts Usage Use at the lowest drilling speed while applying pressure to effectively remove burrs. Ideal for removing burrs on pipes or threaded rods. Effective on materials including stainless steel, hardened steel, mild steel, copper, brass, aluminum, fiberglass, wood, and plastic.