Milwaukee Polishers are built for the professional, with a powerful motor to maintain the right speed. This versatile model will accept 7in. or 9in. accessories. Built for a long life, this tool includes helical gearing, all ball and roller bearings and an aluminum gear case with protective urethane bumpers. U.S.A. Speed (RPM): 1,750, Amps: 11, Disc Diameter (in.): 7 or 9, Wheel Diameter (in.): 7/9, Tool Length (in.): 16 1/2, Tool Weight (lbs.): 8.8 Self-stopping long-life brush system Spring-loaded spindle lock for easy backing pad changes Lightweight for use with standard liquid polishes Balanced, powerful and rugged