Diamond cutting discs are tools for grinding, grinding and polishing. Most diamond 14 inches cutting disc are synthetic diamond cutting discs made of abrasive plus binder, and natural abrasives directly processed from natural mineral rock. In addition to being widely used in machinery manufacturing and other metal processing industries, diamond cutting sheets are also used in the processing of food processing, paper industry and non-metallic materials such as ceramics, glass, stone, plastics, rubber, and wood. During the use of the diamond cutting piece, when the abrasive grain is blunt, the abrasive particles are partially or completely detached from the grinding tool due to partial fragmentation of the abrasive particles or the breaking of the bonding agent, and the abrasive on the working surface of the high quality cutting disc supplier is constantly emerging. The cutting edge, or the continuous emergence of new sharp abrasive particles, allows the grinding tool to maintain cutting performance for a certain period of time. This self-sharpness of the diamond cutting piece is a prominent feature of the diamond cutting piece compared with the general tool. Diamond cutting sheet features 1. It can not only cut ultra-hard brittle materials, but also grind ultra-hard brittle materials. The surface of the cut and ground objects is smooth, angular and tidy, with low breakage rate and high yield. 2. Fast cutting speed, high grinding efficiency and long service life. 3. It is suitable for trimming, trenching, shaping, rough grinding plane (including wall skirt) of super-hard brittle materials (such as marble, terrazzo, granite and refractory bricks, etc.). 4. It has two functions of cutting and grinding, and the comprehensive cost is reduced. The utility model is suitable for the processing of construction, decoration engineering and stone products.