Powr-Flite NM202 Dual Speed Millennium Edition Floor Machine, 175/320 RPM, 20"Millennium Edition Dual Speed Floor Machine 20" 1. 5 HP NM202 Dual speed 175 320 RPM machines have the power and speed to spray buff and dry polish tile floors, providing excellent results. Millennium Edition Dual Speed floor machines effectively scrub, strip, spray buff and polish every type of floor. Incorporating a patented noise and vibration reducing molded housing, the Dual Speed Floor Machines provide versatility for every job. Features: Dual