World-famous Dynafile replaces tedious hand filing and sanding. Grind, deburr, blend, polish, finish and more * Finish and polish using slack of belt. For use on metal, plastic, fiberglass, composites, rubber, glass and stone * Accepts a variety of additional Contact Arms. Work in areas as small as 3/8-Inch diameter * Motor easily adjusts to the most comfortable throttle lever position. Lightweight composite belt guard allows quick and easy belt change * Hard and soft platen pads mount onto Contact Arms for heavy grinding or contour polishing