NORTON 66623395031 NEON FIBER DISC 7″ X 7/8″ ALUMINUM OXIDE 50 GRIT THE MOST HEAVY-DUTY OF COATED ABRASIVE DISCS WITH RESIN OVER RESIN CONSTRUCTION ON HEAVY-DUTY VULCANIZED FIBER BACKING. DESIGNED FOR APPLICATIONS RANGING FROM HEAVY STOCK REMOVAL TO SURFACE BLENDING. USED WITH BACK-UP PADS ON PORTABLE ANGLE GRINDERS. IDEAL FOR GENERAL PURPOSE APPLICATIONS. FULL RESIN BOND FOR STRENGTH AND DURABILITY. BLENDED PROPRIETARY GRAIN TECHNOLOGY INCREASES LIFE AND CUT RATE. APPLICATIONS ARE: RIGHT ANGLE GRINDING