Size: the head diameter is 8 mm, the shaft diameter is 3 mm (1/8 inch), and the length is 45 mm (1.8 inches); the diamond grinding head fits most rotary tools and die grinders. Sufficient: includes 10 pieces of diamond mounted points, sufficient for daily use and replacements; ideal for sharing with others. Sturdy: diamond grinding bits are made of quality metal with diamond coatings, offering durability, resistance to breakage and wear, and long-term performance. Dog nail grinder bit: the 120 grit diamond grinding set is suitable for pets weighing 30 pounds and under, making it an essential tool for pet owners. Application: diamond-coated bits are suitable for carving, shaping, and grinding glass, alloy, precious stones, ceramic, and other hard materials; also ideal for use as a repair tool bit, jewelry tool, and in crafts and hobbies. Color: silver Material: metal Package Contents: 1 set x Diamond grinding bits Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.