Makita DGA517RTJ 125mm 18V Cordless Angle Grinder (2 x 5.0Ah Batteries) The new DGA517 variable speed 18V 125mm Angle Grinder is designed to suit the needs of fabricators, engineers, welders and stone masons. The variable speed function allows users to select the optimum speed for the accessory and the application. This model is sold with 2 x 5.0Ah Batteries and a DC18RC Charger in a Makpac Type 3 Connector Case. Features: Brushless motor Variable speed control dial Anti-Restart function Electric brake Paddle switch Electronic current limiter Battery fuel gauge Ergonomic soft grip Automatic torque drive technology (ADT): adjusts speed and torque during operation for optimum performance Active Feedback sensing Technology (AFT) : turns the motor off if rotation of the wheel is suddenly forced to stop Wire mesh intake covers are engineered to prevent debris from entering motor Tool-less wheel cover Soft start Comes With: 2 x 5.0Ah Batteries 1 x DC18RC Charger Makpac Type 3 Carry Case Specification: Wheel Diameter: 125mm Bore Diameter: 22.23 mm Max Wheel Thickness: 7.2 mm No Load Speed: 3,000 -8,500 rpm Switch Type: Paddle Switch Vibration: Surface Grinding: 6.0 m/s_ Vibration: Disc Sanding: 2.5m/s_ Vibration K Factor: 1.5m/s_ Sound Pressure: 79 dB(A) Sound K Factor: 3 dB(A) Weight: 5kg