Makita DGA513Z Angle Grinder 18v uses the variable speed control dial and wheel speeds from 3000rpm through to 8500rpm allowing great stock removal when using this cordless Angle Grinder. Features of the DGA513Z include Makita Automatic Torque Drive Technology (ADT) adjusting the speed and torque depending on the loading being applied, Active Feedback Sensing Technology (AFT) superb safety feature that turns the motor off immediately if the rotation of the wheel is suddenly forced to stop. This 18v Makita Angle Grinder uses an anti-restart function, slide switch, soft start, lock-on function, wire mesh intake covers plus an electronic current limiter.Specifications: 18v brushless motorNo load speed 3000rpm to 8500rpmWheel diameter 125mm x 22mm boreMaximum wheel thickness 7mmVariable speed control dialAnti-restart functionElectric brakeSlide switchAutomatic Torque Drive Technology (ADT)Active Feedback Sensing Technology (AFT)Electronic current limiterBattery fuel gaugeLock-on