Norton RazorStar F990S 4-1/2" x 7/8 CA Coarse Grit Fiber Disc, 36 Grit Coarse Grade for Grinding (27990) (25/PK)

Take your right-angle grinding to a new level with Norton RazorStar fiber and quick-change discs featuring engineered shaped ceramic grain technology for the best cutting performance in the industry. Designed for medium to high- pressure metal removal in the toughest grinding applications, Norton RazorStar discs feature 100% ceramic engineered shaped grain which cuts through metal with unbeatable performance. Norton RazorStar discs are setting a new standard in grinding productivity, speed and life. HOW IS NORTON RAZORSTAR UNIQUE? Norton RazorStar discs with engineered shaped ceramic grain are a breakthrough technology specifically designed to deliver unbeatable grinding performance versus all other ceramic discs on the market today The unique combination of razor-sharp grains with a supersized grinding aid helps to significantly reduce heat generation for cooler cuts and longer life on all materials A single disc design has been optimized for superior performance on all materials including carbon steel, aluminum, stainless steel and hard-to-grind metals ENGINEERED SHAPED CERAMIC GRAIN The engineered shaped grain in Norton RazorStar discs features a consistent shape from grain to grain along with razor-sharp cutting points. The unique patented geometry and tough micro- structure enable the grain to stay sharp, as new cutting points are exposed when the grain fractures. RazorStar discs also features a very high concentration of grains oriented in an upright position, so they are ready to cut and perform at their sharpest.