New Dremel #655 Keyhole routing bit The Keyhole Router bit expands the versatility of the Dremel rotary tool by allowing you to cut keyhole slots in wood. The high-speed router bit made from high-grade steel for smooth cuts and long life. Use with the Dremel #231 Shaper/Roputer Table or #330 Router attachment sold separately. Use to rout mounting slots in picture frames, plaques and other items you wish to hang. You can also use to create a decorative edge to your work piece. Click on picture to see profile this bit makes