World-famous Dynafile replaces tedious hand filing and sanding. Grind, deburr, blend, polish, finish and more! Grind from contact wheel or platen pad. Finish and polish using slack of belt. For use on metal, plastic, fiberglass, composites, rubber, glass and stone. Tool includes 11218 Contact Arm for standard use. Also accepts a variety of additional Contact Arms. Superior belt tracking permits use of abrasive belts 1/8", 1/4" or 1/2" wide x 24" long. Work in areas as small as 3/8" 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.