Description: Brazed diamond grinding head cylindrical The diamond grinding head is made of high-quality synthetic diamond, which is made with fine workmanship and reliable quality. The coarse sand is suitable for peeling the original stone, super sharp, high grade, and more angular. Product features: high hardness, high wear resistance. Suitable for electric grinders, engraving machines, electric machines. Specification: Material: Metal+Diamond Shank Diameter: Approx. 3mm / 0.12inch Total Length: Approx. 45mm / 1.77inch Color: Gold Size Chart: Head Diameter : 4mm/0.16inch 5mm/0.20inch 6mm/0.24inch 8mm/0.31inch 10mm/0.39inch Package Includes: 2 Pieces Diamond Grinding Head Note: 1. The speed of the work should be as high as possible. 2. The water should be cooled, otherwise the diamond will be graphitized due to overheating, and the wear will be scrapped. 3. When the tool is newly installed, it is necessary to test whether the tool is beating or not. 4. When drilling, try to avoid shaking, otherwise it will accelerate the damage of the whole tool. 5. Push gently to avoid damage. Please understand due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow slight differences due to manual measurement. Thanks for your understanding and have a nice shopping day!