Voltage : 18 Wheel Diameter : 5 In. Battery Type : Lithium-Ion Motor Type : Brushless Battery Platform : Milwaukee M18 Width (In.) : 2.787 Height (In.) : 3.5 Weight (Lb.) : 3 Length (In.) : 14.02 Batteries Included : No Charger Included : No Case Included : No Warranty : 5 Year Corded/Cordless : Cordless Maximum Speed : 8500 rpm Arbor Size : 5/8 In.