The Makita model DGA463Z is a 18v LXT BL 115mm Angle Grinder Bare Unit. 115mm, slide switch, variable speed angle grinder powered by 18V LXT lithium-ion battery. Body only / naked machine, supplied without battery or charger. Features of the DGA463Z Brushless motor Variable speed control dial. Anti-restart function. Electric brake On/off slide switch. Electronic current limiter for overload protection. Battery fuel gauge Ergonomic soft grip Automatic Torque Drive Technology: Automatically changes the cutting speed according to load condition for an optimum operation Active Feedback Sensing Technology (AFT): Shuts down the tool to protect the user if the rotation speed suddenly slows down Removable dust covers Lock-on function Soft start. Bare Tool - No Battery .