Norton® NorZon® Plus BlueFire R823P 80 Grit X Weight Norlok RR Joint Narrow Belt measuring 2" X 72" is made from zirconia alumina abrasive material that offers aggressive, rapid cut rate. Belt with polyester waterproof backing finds application in grinding and deburring of all metals, heavy stock removal, blending, dimensioning and shaping, polishing. It has excellent grain adhesion, reduced edge-fray and better body retention resulting in longer life and product consistency. Belt is sold as 50 per pack.