Grinding tools are mainly used for grinding, polishing and chamfering of various sizes of silicon rods. Compared with traditional grinding tools, diamond grinding tools have obvious advantages: high abrasive hardness, sharp abrasive particles, high material removal rate and high machining efficiency; high hardness of grinding tools, low wear, long repair intervals, long service life; good shape retention and high machining accuracy of grinding tools ; good thermal conductivity of grinding tool and low grinding temperature.