[High-Quality Tungsten Carbide Blade] Made of high-hardness metal with high strength and hardness, offering excellent durability and rust-resistant, corrosion-resistant performance. Hard alloy blades provide higher cutting efficiency and hardness compared to standard high-speed steel tools. Designed for long-lasting use. [Suitable Size Range] Compatible with drill speeds of 0–400 RPM. Ideal for round blank materials, rods, bolts, and screws ranging from 1/8 inch (3 mm) to 3/4 inch (20 mm). Larger diameters support greater pressure and broader application across common bolt sizes. [Six-Point Quick-Release Design] Hexagonal shank features a quick-release design compatible with most drills. Begin at the lowest speed, apply gentle pressure to remove burrs, then gradually increase speed as needed. [Sharp, Precision Edge] Effectively deburrs and chamfers exterior edges of bolts and nuts on various materials including mild steel, copper, brass, wood, fiberglass, and hard plastics. Produces a clean, smooth finished edge. [Chamfering Angle] Efficiently chamfers outer edges of screws, bolts, pipes, and rods while removing burrs. Enables fast bolt repair and nut tightening without risk of hand injury. Spark-free and burn-free operation simplifies maintenance. Color: Black + Blue / Blue Material: Metal Package Contents: 2 x Chamfer Tool Note: Actual product color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.