For use with rotary tools 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. Use with Dremel collet No. 481 or Dremel chuck No. 4486. 3/32" Shank.From the ManufacturerDiamond ball point 1/8" shank, 5/64-inch diameter ball shape point for fine detail work, cutting, engraving, carving, touch-up and finishing. Use with collet #481, or #4486 Dremel Chuck
