... and methods of applicationCarbide rotary file is also called carbide high speed cutter, carbide mould cutter, carbide rotary burrs, carbide rotary burs, carbide milling cutter, tungsten carbide rotary burrs, carbide burrs, hardmetal burrs, super hard tools, carbide tools, tungsten ... hardened steel) and nonferrous metals( such as marble, gemstone, bone, etc), the machining workpiece’s hardness can be ...