XCAN Rotary File Set 6mm Shank Carbide Burrs Type A C D F G Double Cut Rotary Burr for Metal Wood Milling Hand Tools Features: 1. High degree of finish, can work out the high accuracy of various shapes mold cavity. 2. 10 times higher than the durability of high speed steel cutter, 200 times more than the small wheel durability. 3. Use with handheld electric or pneumatic tool drive (can also be used in machine tool). 4. The speed of the electric or pneumatic tools usually is 6000-50000 revolutions per minute. 5. Processing all kinds of metal (including all sorts of hardened steel) and non-metal (such as marble, jade bone), machining hardness reach < HRC70. 6. For the most work it can be replaced with small grinding wheel, and no dust pollution. 7. Used to clean trimming, veining and weld joint of casting, forging and weldment; finish all kinds of metal molds; impeller passage of finishing processing; variety of mechanical parts chamfer, round and groove processing; inner hole surface of machinery parts finishing; the process of various metal and nonmetal sculpture. Specification: Type: Double Cut Material: Tungsten Carbide Shank: 6mm Largest Diameter: 8mm Package Including: 1pc/5pcs Double Cut Rotary Burr Set