The ANSITOOL J05101 electric brushless Sander delivers fast removal and a well-blended, ultra-smooth finish, so woodworkers and finish carpenters can sand quickly and to exacting standards. DA sanding machine is designed to eliminate swirl marks on the workpiece. Additionally, the backing pad is pliable to ensure a smooth, fine finish on both flat and contoured surfaces alike. With a comfortable soft-grip top and body design, this tool has variable-speed control from between 4,000 and 10,000 RPM to match the speed to the task. It also includes an on-board system for filtering fine dust.