Welcome to our store! Here is a detailed description of our product: Features: - Made of high-quality material, ensuring wear resistance and long service life. - Specially designed for grinding carbide, hard steel, stone, metal, and other materials. - Provides high grinding efficiency with smooth and unbroken edges, without producing vibrations. - Mainly used for processing and grinding alloy knives, saw blades, and saw teeth. - Can process tungsten steel, cold work steel, and other special hard brittle materials. Specification: - Material: Resin + Diamond - Weight: Approx. 230g / 8.1oz - Process: Sintering - Outer Diameter: 125mm / 4.9in - Hole Diameter: 32mm / 1.3in Package List: - 1 * Diamond Disc Note: Please allow slight measurement errors due to manual measurement. Thank you for your understanding. 100% Satisfaction: Our customers are our top priority. If you encounter any product problems after receiving the goods, such as damage or incorrect quantity, please contact the seller immediately. We strive to provide you with satisfactory customer service.