Carbide tool rotary files have the following characteristics: 1 metal materials can be drilled and processed at will below HRC70 (including hardened steel) and non-metallic materials (such as natural marble, jade, bone). It can solve the small wheels, not part of the work of 2, and there is no smoke and dust environmental pollution. 3 High production efficiency and high resolution efficiency are ten times that of hand-made documents and nearly ten times that of small sand wheels. 4 The processing cost is high, the smoothness is high, and it can produce a variety of high-precision abrasive cavities. 5Long service life, 10 times longer than the service life of spring steel CNC blades, and better than the wheel performance of 200 times. 6 Simple, easy to use, reliable, can reduce labor efficiency and improve the office environment. 7 The efficiency of economic development is further improved, and the cost of comprehensive solutions can be reduced dozens of times.