DeWalt DWP849X 7&rdquo;/9&rdquo; Variable Speed Rotary Polisher W/FREE Pads Backing Plate & BONUS ITEMS Powerful, 12.0 Amp, all ball-bearing construction for long life and performance for the most demanding applications Electronic module maintains specified speed under load delivering better finish results Conveniently located variable speed dial lets user set maximum speed from zero to 600/3500 rpm for different materials and applications Variable speed trigger allows user to control speed from 0 to dialed maximum setting Heat-treated, precision-cut steel gears for smooth operation Wool Ingestion Shields eliminates wool ingestion increasing tool life and reducing service costs Non Mar Rubber Gear Case Cover reduces surface imperfections and improves gripping surface