Size detail: the head diameter is 8 mm, the shank diameter is 3 mm/ 1/8 inch, and the total length is 45 mm/ 1.8 inches; The diamond grinding head fits for most rotary tools and die grindersSufficient quantity: includes 10 pieces diamond mounted points, which are enough to meet your daily use and replacement needs, and you can also share them with family or friends who are in needSturdy: the diamond grinding bits are made of quality metal with diamond coatings, which are safe and sturdy, not easy to break and wear, and can be applied for a long timeDog nail file grinder bit: the 120 grit diamond rotary grinding set is suitable for dogs weighing 30 pounds and under, which is an essential tool for groomers and pet-owners to achieve smooth nailsApply to: the diamond coated bits are suitable for dressing, sculpturing and grinding in glass, alloy, precious stone, ceramic and many other abrasive materials, and also suitable for home repair tool bit, jewelry tool, crafts and hobbiescolour: silverMaterial: metalPackage Contents:1 set x Diamond grinding bitsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.