Designed with Star Protection Computer Controls for protection against overloading, over-discharging, and over-heating the brushless 18-volt Makita grinder. Tool Only. Makita XAG03Z 18 Volt LXT Lithium-Ion Cordless 4-1/2″ Cut-Off/Angle Grinder has automatic speed change technology adjusts speed and torque during operation for optimum performance. The brushless motor eliminates carbon brushes which allows the motor to run smooth and more efficiently. It has a compact and ergonomic at 14-1/4″ and weighs only 5.5 lbs. for reduced operator fatigue. 3-stage LED gauge indicates battery charge level. Soft start suppresses start-up reaction for smooth start-ups and longer gear life. Wire mesh intake covers are engineered to prevent debris from entering motor.