Cordless Angle Grinder Kit, Bare Tool, Voltage 18.0, Wheel Dia. 5 In., 8500 No Load RPM, Cordless Tool Battery Type Li-Ion, Series M18(TM) FUEL(TM), Brushless Motor Yes, Switch Type Paddle, Lock-on No, Lock-off No, Tool Length 12 In., Battery Included No, Battery Pack Replacement 38D766, Battery Capacity 4.0Ah, Spindle Thread Size 5/8 In.-11, Tool Weight 4.4 lb., Features Slim Design, Overload Protection, Electronic Clutch, Tool-Free Guard and Accessory Changing, MILWAUKEE P/N 2780-20