Designed with the professional in mind DEWALTs 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 DEWALTs 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.