Turn your Dremel rotary tool into a powerful high speed cutter. Create stylish designs on wood, fiberglass, ceramics, jewelry, soft metals and more. The powerful, simple-to-use engraving cutters make it easy to express your creativity. High speed steel cutterIdeal for shaping, hollowing, grooving, slotting, inlaying and making tapered holesUse on soft metals, plastics and woods especially on curved surfacesUse the sides of the cutter for effective cutting5/16 in.2 countUse higher speeds for hard woods, slower speeds for metals and very slow speeds for plastics.