786C | Diameter 3″ | Grit 80+ | 15 Discs Per Box Cubitron II cuts faster and lasts longer than conventional ceramic abrasives. Precision Shaped Grain (PSG) technology employs microreplication for extremely uniform abrasives. Triangular PSG abrasive grains are super-sharp and cut exceptionally fast. PSG self-fractures during use to maintain sharpness and prolong abrasive life. Stiff fiber backing and a strong resin bond lend this disc long life and tear-resistance. Grains are electrostatically oriented on the abrasive surface for efficient cut and even wear.