Outfit your bench and pedestal grinder with this Gemini® 57A AO Type 01 bench and pedestal wheel to tackle general purpose applications on steel, iron, alloys and other metals. A gray aluminum oxide abrasive and a vitrified bond that provides superb shape holding help the wheel resist wear for a longer wheel life. Available in a variety of sizes and grits, the wheel features telescoping bushings to fit most arbor hole sizes and works well for offhand grinding applications.