Features a four-brush motor design and optimized gear structure. The grinder is powerful, producing 10,000 no-load rpm, to handle professional cutting and grinding applications. It features a two-position Vibration Control side handle for better handling and less operator fatigue. Kit includes: 18V 41/2" Angle Grinder, GBA18V40 18V CORE18V Lithium-Ion 4.0 Ah Compact Battery, 18V Charger, Vibration Control Handle, Wheel Guard, Grinding Disc, and Carrying Bag.