From aluminum oxide to ceramic to diamond edge technology, Spyder® discs are designed to take on anything—steel, stainless steel, cast iron, masonry, tile, and more. Proprietary self-sharpening grains, quick-change spin-on arbors, and shatter-resistant cores make them safer, faster, and longer lasting than conventional wheels. Whatever the cut, whatever the grind—Spyder discs deliver more work in less time.