Complete a variety of projects around the home or the workshop with the Dremel 540 1-1/4 inch Fiberglass Cut-off Wheel. Only the edge cuts, offering greater precision and control. A cutting disc made of a hard abrasive with a diameter of 1 1/4" (32.0 mm) and a thickness of 0.0625" (1.6 mm) 5 per package. Ideal for cutting, grooving and trimming all kinds of materials--including metal, wood and ceramics. You can use it to cut screws and rusted bolts, make slots in screw heads, trim castings and more. The cut-off wheel cuts only along its edge. Do not attempt to sand or cut curved holes with them. Dremel 540 Cut-off Wheel, 1.25 inch (31.8 MM) L, 5 Pieces: Ideal for cutting, grooving and trimming all kinds of metal May also be used on other materials-including thin wood, plastics and ceramics Cut-off wheels make it easy to cut bolts or screws or make slots in rusted or stripped bolts and screws for removal with a screwdriver Only cuts along its edge Dremel 540 cutting wheel is also suitable for ceramics Max RPM: 30,000 Power Tools and Accessories Manufacturer: Dremel