Use for fine detail work, cutting, engraving, carving, touch-up and finishing</br>Use on wood, jade, ceramic, glass, hardened steel</br>Bits are covered with diamond particles</br>Use with #481 collet, or #4486 Dremel Chuck</br></br>Product Description</br></br>For fine detail work, cutting, engraving, carving, touch-up and finishing. Use on wood, jade, ceramic, glass, hardened steel, semi-precious stones and other hard materials. Bits are covered with diamond particles. .</br><br/>http://www.amazon.com/gp/product/B00004UDJA