diamond drill bit set

This product is specially developed for the drilling of superhard materials such as stone without water . It combines the sharpness of [glass hole saw] with the durability of [sintered hole saw], and can easily drill holes for hard tiles/marbles! Using a new brazing process, the process can firmly fix the diamond particles on the substrate, and it is not easy to fall off, the diamond has high density, sharpness, more wear resistance, longer life ,dry drill and good effect! There is no need to replace the grinding head frequently, which saves working time and greatly improves the production and processing efficiency. The high-strength steel matrix is used, and there is no potential safety hazard caused by fragmentation and flying out.