Dynabrade 15300-Dynafile III Air-powered abrasive belt tool .7 hp, 7 Degree Offset, 20,000 RPM, Front Exhaust, for 1/4"-1" W x 18" L Belt is excellent for grinding welds, blending and deburring. The Dynafile III Abrasive Belt Tool offers the versatility of the Dynafile II while offering more power for faster material removal. This tool includes high-efficiency rubber drive wheel, ideal for use with all abrasive belts. Also includes 15350 Contact Arm for 1" wide x 18" long belts.