Impact Driver, Drive Size 1/4 in Hex, Drive Configuration Straight, Max. Torque 1,460 in-lb, Voltage 18 V, Brushless Motor No, Free Speed 2,900 RPM, Impact Rated Yes, Impacts per Minute 3,500, Number of Speed Settings 1, Collett 1/4 in Hex, Cordless Tool Kit Contents Bare Tool, Number of Batteries Included 0, Battery Series LXT, Charger Included No, Case Included No, Handle Type Pistol Grip, Built-In Light Yes, Overall Length 5 3/8 in, Wireless Tool Tracking No, Power Source Cordless