This is DW849 H/D Electric Sander/Polisher. This is a Dewalt Variable Speed Right-Angle Polisher. The heavy duty Dewalt 12 amp, 7/9" right angle polishser performs smoothly & consistently with heat-treated, precision-cut gears & powerful all-ball bearing motor. Conveniently located variable speed dial allows the user to set the maximum speed from 1,000 to 3,000 for different materials & fill power support with the electronic module. Easy to service with external brush caps. Includes rubber backing pad, nut & side handle.