Carbide rotary file for iron and other metals. There is a saying that there is no diamond drill, don't buy porcelain rotary cemented carbide rotary files, diamond is the highest hardness material at present, with a hardness of 10 Mohs hardness, which can be used to process ceramic cemented carbide rotary files. The hardness of the tungsten steel after heat treatment is high-carbide rotary burrs, but it is relative to the carbon steel carbide rotary burrs. If the hardness of the tungsten steel is higher than that of the ceramic carbide rotary burrs, don’t talk about it. People laughed out of their teeth, cemented carbide rotary file.

Diamond is not a metal carbide rotary file. At present, there is no metal harder than ceramic cemented carbide rotary file.