Cordless angle grinders powered by 18V Li-ion battery, and equipped with highly enhanced Brushless DC motor. A built-in controller changes the cutting speed automatically according to load condition, enabling users to obtain high speed rotation on light duty application/ high torque on heavy duty application.Automatic Speed Control: Automatically changes the cuttingspeed according to load condition for optimum operationHigh power motorAnti-restart function.Soft start feature.Battery fuel gaugeRubberised soft grip.Electronic current limiter for overload protection.Slide switch conveniently located for one hand operation.Bare Tool - No Battery or Charger IncludedSpecifications: Battery Type Lithium-ionBody only machine 1Voltage 18 vBore Diameter 22.23 mmMax Wheel Thickness 6 mmNoise sound pressure 79 dB(A)Noise K factor 3 dB(A)Max Wheel Diameter 125 mmNo Load Speed 8,500 rpmVibration K factor 1.5 m/secVibration: Surface Grinding with Anti-Vibration Side Grip 6.0 m/secVibration: Surface