[Diamond Grinding Head Burr] Diamond Mounted Point used for sculpting, precision grinding, and internal grinding of carbide in ceramic, glass, precious stone, alloy, and other abrasive materials. [Diamond Materials] Diamond burr set made of diamond particles, thick and durable, wear-resistant, high hardness, and impact-resistant, suitable for fine detail work. [Universal Compatibility] Diamond grinder bits set features a universal 3mm (1/8 inch) shank, compatible with most rotary tools and die grinders. [Multi-functional] Diamond grinding burr bits are extremely sturdy and wear-resistant. Ideal for polishing stone, glass, tile, brick, and fiberglass. Suitable for DIY crafts, modeling, home repair, wood, some plastics, and nails. [Universal Tool] Diamond burrs set, Diameter: 0.118 inch (3mm); Head Diameter: 0.15 inch, 0.19 inch, 0.23 inch, 0.31 inch, 0.39 inch, 0.47 inch (4mm, 5mm, 6mm, 8mm, 10mm, 12mm). Color: Silver. Material: Diamond. Package Contents: 1 set x carbide burr set (12 pcs). Only the above package content is included; other products are not included. Note: Light and display differences may cause the color of the item in the picture to vary slightly from the real thing. Measurement may allow an error of +/- 1-3 cm.