Merit quick change discs are perfect for ferrous and non-ferrous materials. Typical applications include light and medium grinding, blending and finishing on contours and flat surfaces. Merit quick change discs are aluminum oxide and are very versatile and durable with aggressive cutting action. The Merit quick change discs are heavyweight with a smooth cotton backing. They are available in 2" and 3" discs with key grits 36, 40, 50, 60, 80, 100, 120, 180. Merit quick change discs are the answer all your grinding, blending, and finishing needs. Contact us today for help deciding what kind of quick change discs suit your needs!