Synthetic diamond (SD) has the highest hardness and is characterized by good grinding wear resistance, high efficiency, high compressive strength, and long service life. At the same time, it can also improve working conditions and become an ideal tool for grinding hard and brittle materials and hard alloys in grinding processes. Therefore, it is widely used for grinding low iron content metal and non-metal hard and brittle materials that are difficult to process with ordinary grinding tools, such as hard alloys, PCD, PCBN cutting tools, ceramics, semiconductors, glass, ferrite and other hard and brittle non-metal materials, as well as cast iron and non-ferrous metals.