CUT, CARVE, SAND - Dura-Grit, the most versatile cutting and shaping tools you ever use! Long-Lasting, High Performance Carbide Burrs 1/8 dia. Shafts-Run at Speeds Up To 35,000 RPM! Use on DREMEL, Foredom, We Cheer Ryobi Black & Decker, Sears Craftsman, Proxxon and Other High Speed Drills. You’ll have a hard time running out of ways to use them! Ideal for use on: Hard and soft woods, Laminates, MDF, Fiberglass, Carbonfibre, ABS, PVC, Rubber, Leather, and more! (Not for use on metal.) 80 Grit 1 dia. Cutting Wheel (CW1-080)80 Grit 3/8 dia. Hollow Tip Burr (HTB-080)80 Grit 3/8 dia. Conical Tip Burr (CTB-080)80 Grit 1/8 dia. Pointed Burr (PB8-080) GREAT FOR: Model Aircraft Model Boats Dolls Houses etc.D.I.Y. Projects. Now that’s versatility!