Ryobi 4.5-Amp 6 in. Variable Speed Sander, Polisher & Buffer with Handle - Polish Your Car Like a Pro POLISH AND WAX YOUR CAR, BOATS AND MORE - 1400 RPM (revolutions per minute) no load speed is the optimum speed to apply different types of waxes and compounds. This speed is also perfect for the removal and buffing of final coatings ADJUST THE RPM TO SAND ROUGH WOOD AND METAL - 1650 RPM is great for rust removal and sanding rough wood or metal EASY TO BALANCE, MANAGE AND CONTROL - flanged auxiliary handle mounts to right or left side HEAVY DUTY AND LONG-LASTING - ball and sleeve bearings are permanently lubricated for long service-free life EASY TO USE - spindle lock capability simplifies changing paper, pads or bonnets