Features: Professional Grinding Head delivers efficient polishing and rapid surfaces imperfection removal, perfect for metal, jade, and multi materials projects with long lasting durability. Features tightly packed abrasive grains and 3mm shank diameter for stable grinding performances, for most rotary tools and electric drills. Ideal for DIYer enthusiasts, jewelry craftsmen, and metalworkers needing precise in detailed polishing tasks. Tackle metal restoration, stone carving, or small scale workshop projects effortlessly with this versatile abrasive wheel accessory. Engineered with premium grade materials for exceptionally wear resistance, reducing replacement costs while maintaining sharpened cutting edges during intensive grinding operations. Specifications: Component: Grinding wheel Handle diameter: 3mm Grinding head diameter: 3/4/5/6/8/10/12mm Package Includes: 1 Set Grinding Head note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.