High Performance And Efficiency For Heavy-Duty Grinding Applications. Automatic speed control feature adjust the speed according to the load condition, enabling rapid movement between high speed and high torque applications. eXtreme Protection Technology (XPT) offers maximum protection against dust, debris and liquids for optimal performance in extreme conditions. Brushless DC motor with high power to weight and size ratio. Brushless DC motor generates less heat buildup and is ideal for prolonged use in manufacturing/production applications. Battery fuel gauge indicates approximate remaining battery power. Anti-restart feature prevents accidental start up of tool during battery changing when switch is locked in the on position. Soft start feature gradually increases speed to eliminate start up shock. Electronic current limiter protects motor from accidental overload. Battery protection system provides over-discharge, temperature and circuit protection for enhanced performance, battery cycle life and overall battery life. Integrated dust screens act as additional protection against dust, dirt and debris. Slim, ergonomic soft rubber grip design for vibration absorption and comfortable operation.