Specification: Brand new Material: Tungsten Carbide Groove: Double Cut Solid Cutting edge diameter: Approx. 10mm Shank diameter: Approx. 6mm Total length: 58-65mm Features: Improves ease of control Increases metal removal rate Breaks swarf into small manageable pieces Aluminium Cut First choice for general machining, non ferrous materials and plastics High helix and large flute volume for rapid metal removal For electric or pneumatic tool drive (can also be used in machine tool)The speed of the electric or pneumatic tools usually is 6000-50000 revolutions per minute, Suitable for deburring and polishing cast iron, cutting, engraving carving, cast steel, carbon steel, alloy steel, stainless steel and other materials Machining hardness reach HRC70, For the most work, rotary burr set it can replace Petiole small wheel. And their working life is 10 times longer than normal HSS Burr, 200 times longer than Petiole small wheel. Double-cut head: Double-cut style has rows of cutting teeth cut in two intersecting directions for fast material removal and a rougher finish They all feature toughened and hardened steel shanks that provide rigidity and strength. This prevents bending and reduces vibrations for an improved tool life. Package Included: 5Pcs * Carbide Rotary Tool Note: Please allow minor deviation due to manual measurement. Due to the difference between different monitors in each computer, the picture may not reflect the actual color of the item.