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>Dremel 7105 Specifications: Bit Diameter: 11/64" Shank Diameter: 3/32" (2.4 mm) Color Code: TealDremel 7105 Features: Ideal 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. Removes material quickly and easily. Bits are covered with diamond particles.</br><br/>http://www.amazon.com/gp/product/B00004UDJ66veryday