Features: - It can process various metals (including hardened steel) and non-metals (such as marble, jade, bone), and the processing hardness can reach up to HRC70 - It can replace the small grinding wheel with handle in most of the work, and there is no dust pollution - High production efficiency, dozens of times higher than processing efficiency with a file, and nearly ten times higher than processing efficiency with a small grinding wheel with a handle - The product has good processing quality and high finish, which can process high-precision mold cavities of various shapes - Long service life, ten times higher than the durability of high-speed steel cutters, and more than 200 times higher than the durability of small grinding wheels - Simple and convenient to use, safe and reliable, can reduce labor intensity and improve working environment