Smooth and undamaged edges: The grinding wheel is made of high-quality resin and diamond materials, which is wear-resistant and has a long service life. High grinding efficiency, smooth and unbreakable edges, and no vibration. It also has good self grinding and sharp cutting. Practical processing and grinding tools: Diamond grinding discs are mainly used for alloy knives, saw blades, serration processing and grinding. Capable of grinding tungsten steel, quenched steel, and special hard and brittle materials. Widely used: This resin diamond grinding wheel has high resistance and excellent polishing performance. The surface roughness of the workpiece is low. Used for grinding hard alloys, hard steel, stone, metal, and other processing and polishing. Service Assurance: We have a professional customer service team. If you have any questions, please contact customer service promptly and we will resolve the issue as soon as possible. I hope you have a pleasant shopping experience. Manual measurement, please allow for slight errors.