The Dynabrade Dynafile abrasive belt machine grinds, deburrs, blends and finishes normally inaccessible areas on metal, plastic, fiberglass and other composites. The Dynafile uses coated abrasive belts 1/2", 1/4" or 1/8" wide by 24" long. Non-woven nylon and cloth polishing belts are also available. The 20,000-rpm tool weighs 3 lbs. The lightweight, composite housing reduces vibration and is thermal-insulated to prevent cold air transmission to the operator's hands.