Designed with the professional in mind DEWALT's First 20V* MAX XR 3X21 in. Cordless Belt Sander (Tool Only) is ideal for carpentry， remodeling， and general contracting. The variable speed trigger with lock on and speed selection dial allows for ultimate speed and application control with 25 speed increments. The quick release belt change allows sand paper to be changed easily with the quick release system. With the over-mold auxiliary handle it gives you two- handed operation and better grip for an easier scribing application. The dust collection feature with included adapters， tool-free dust chute is compatible with DEWALT's Airlock System or a standard 35mm dust extractor to minimize dust during sanding. Wireless Tool Control System allows for ease of use when paired with compatible DEWALT vacuum or dust extractor. With the Brushless Motor you can achieve increased runtime and efficiency. Lastly， the 3X21 in. platen allows for larger surface area sanding. Tool Only