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 25 speed selection dial allows for control for various applications. The quick release belt change allows sandpaper to be changed easily. With the over-mold auxiliary handle it gives you two- handed operation and grip for scribing applications. The dust collection features include a tool-free Dust Port Swivel adapter, that is compatible with DEWALT's Airlock™ System or a standard 35mm dust extractor (both sold separately) to minimize dust during sanding. Wireless Tool Control™ System allows for ease of use when paired with compatible DEWALT vacuum or dust extractor (both sold separately). With a Brushless Motor, this cordless belt sander can achieve long runtime and efficiency. Lastly, the 3X21 in. platen allows for large surface area sanding.