Norton Blaze R980P Portable File Belt, 1/2" x 18", 60 Grit Next-generation cooler cutting Norton SG ceramic alumina grain. Y-wt. polyester waterproof cloth backing. Improved resin bond system. Advanced “supersize” grinding lubricant. Aggressive . Self-sharpening for consistent and longer life. Better metal integrity. Edge-Fray resistance. Improved body-retention during use for more consistent grinding throughout belt life. Significantly improved belt life due to exceptional grain adhesion. Cooler cutting during the life of the belt. Improved part finish and integrity 98022