Product Features A24 Turbo - High Performance. Aluminum Oxide grain. For the pipeline industry. High performance cutting, notching and light grinding. Long life. Ferrous metal (steel, cast iron, etc.) Only wheel designed for both cutting and light grinding, eliminating the need for 2 separate wheels General purpose formulation provides optimum performance over a wide range of applications All sizes reinforced with the highest quality fiberglass for maximum safety and performance Super-Lock Hub on all 5/8-11 threaded arbors in the safest, bibration-free design.