Tungsten Carbide Burr Set 1/4" Shank 10PC Double Cut Rotary Cutting Burrs Die Grinder Bits for Steel and Wood Working, Grinding, Carving, and EngravingTungsten carbide hardness, high strength, and durability. The service life is 8 times longer than that of HSS tool. Pilim double cut carbide rotary burr set can be used on all types of metals, including stainless steel and hardened steel, as well as wood, jade, marble, and bone. Whether you are a master or a beginner, the Pilim rotary burrs are an indispensable tool for you. Milling out, leveling, deburring, cutting out holes, surface work, work on