These long lasting abrasives are comprised of a combination of ceramic and aluminum oxide grit materials, making them extremely aggressive, offering outstanding productivity. Bona 7" Green Ceramic Discs (universal hole) consist of a combination of ceramic and aluminum oxide grains, allowing for an aggressive abrasive that provides extended product life and results in a quality surface for finishing. Cuts 30% faster than any other competitive ceramic abrasive. Lasts up to 50% longer than any other competitive ceramic abrasive
