Voltage : 4 Chuck Size : 1/4 In. Hex Battery Type : Lithium-Ion Battery Amp Hour : 1.4 Ah Batteries Included : Yes Charger Included : No Case Included : No Weight : 1.4 Lb. Dimensions : 8.5 In. x 2.6 In. x 6.8 In. Warranty : 2 Year Corded/Cordless : Cordless Maximum Speed : 180 rpm Torque : 35 In./Lb.