The Suhner Universal Cordless Straight Grinder, No. ASC 9, is ideal for work with non-woven brushes and flap wheels. The reduction gears are designed to deliver high torque and consistent working speed to provide a uniform grinding pattern. The machine is fitted with a chuck system that provides quiet running with minimal vibration. Users can choose between the 1/4" chuck or the 6 mm chuck. The ASC 9 operates at a speed of 9,000 rpm and weighs 4.4 lbs including the battery pack.