These burrs are made of tungsten carbide steel for high hardness, high abrasion resistance and high heat resistance. | There are total 10 pieces double cut burrs in various shapes that you can use for many purposes. | 2.35mm shank would fit many electric powered or pneumatic powered tools and machine tools. | They can be used on cast iron, cast steel, bearing steel, high carbon steel, chrome-nickel alloy, bronze, brass, tile, marble, jade and bone. | Widely used for carving, shaping and for the removal of edges or corners, burrs and excess material.
