Carbide rotary file can be freely cut HRC70 below a variety of metals (including hardened steel) and non-metallic materials (such as marble, jade, bone). In most of the work can replace the small wheel with a handle, and no dust pollution. High production efficiency, tens of times higher than the processing efficiency of manual file, nearly ten times higher than the processing efficiency of small wheel with a handle. The processing quality is good, the finish is high, and the mold cavity of various shapes can be processed with high precision. Long service life, ten times higher than the durability of high-speed steel tools, more than 200 times higher than the durability of alumina grinding wheel. Easy to use, safe and reliable, can reduce labor intensity, improve the working environment. The economic benefits are greatly improved, and the comprehensive processing cost can be reduced by tens of times
