"The DEWALT 7in./9in. 12 Amp Variable Speed Polisher delivers excellent performance in the most demanding applications. It features a variable speed dial and variable speed trigger for precise speed control, while an electronic module maintains your specified speed under load to deliver better finish results. Variable Speed Yes, Tool Length in. 18.5, Speed RPM 0-600/0-3,500, Amps 12, Tool Weight lbs. 6.7, Wheel Diameter in. 7/9. Powerful 12 Amp ball bearing motor for long life and top performance Two speed ranges 0-600, 0-3500 RPM Electronic variable speed dial maintains speed under load, delivering better finish results Variable speed trigger controls speed from 0 to dialed maximum setting Heat-treated, precision-cut steel gears for smooth operation Wool ingestion shields increase tool life and reduce service costs Nonmarring rubber gear case cover reduces surface imperfections and improves gripping surface"