The Makita GA028G 40v Max XGT Brushless 115mm Paddle Switch Angle Grinder is powered by 40v XGT Li-ion battery. The new XGT revolutionary technology ensures that battery and the tools' motor technology work together for optimum performance. The variable speed control dial and detachable auxiliary handle ensures top control throughout use. The tool includes a handy AFT feature, which shuts down the tool if the rotation speed suddenly slows down as well as, the AWS feature which connects to compatible dust extractors with Bluetooth so the dust extractor automatically runs while the switch is on. The tool is ideal for continuous heavy-duty cutting and grinding. Furthermore, the tool-less wheel cover is adjustable to any desired position. Features & BenefitsAble to continuously perform heavy duty cutting and grindingActive Feedback Sensing Technology (AFT)Anti restart functionAuto Start Wireless System (AWS)BrushlessElectric brakeSafety Paddle SwitchSoft startToo