Turn your Dremel rotary tool into a powerful high-speed cutter. Create stylish designs on wood, fiberglass, ceramics, jewelry, soft metals and more. Our powerful, simple-to-use engraving cutters make it easy to express your creativity. Two cutters per pack. -Two 115 high-speed bits per pack -Great for cutting on curved surfaces -Turns Dremel rotary tools into high-speed cutting tools -Ideal for shaping, hollowing, grooving, slotting, inlaying and making tapered holes -For use in soft metals, plastics and woods especially on curved surfaces -Use the sides of the cutter (rather than the tip) for effective cutting -Use higher speeds for hard woods, slower speeds for metals and very slow speeds for plastics (User Tips) -For best results, insert the accessory bit all the way into the tool and then back it out slightly before tightening down. This provides plenty of shank for the collet or chuck to hold onto the bit. -Secure objects to a stable surface while working. -Use the sides of the cutter (rather than the tip) for effective cutting. The tip cuts poorly and can break under pressure. -Use higher speeds for hard woods, slower speeds for metals and very slow speeds for plastics (to avoid melting at the point of contact). -If chattering occurs, increase speed.