Dremel 456-01 1-1/2 in. Reinforced Cut-Off Wheel A 1-1/2 in. Dia. Cutting disc made of a hard abrasive and reinforced with fiberglass for slicing and cutting metal including hardened steel. 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. The cut-off wheel cuts only along its edge.