Ideal for heavy duty grinding applications 125mm wheel diameter, bore 22.23mm, maximum wheel thickness 6mm Slide type switch with lock-on function Automatic Torque Drive Technology (ADT) Automatic speed control Anti-restart function Electronic current limiter Spindle lock for quick and easy wheel changes Can be connected to a dust extraction system with an optional dust collecting wheel cover (not included) Not compatible with G-Series batteries, Weight: 5.51155655 pounds, Manufacturer: Makita