2850-20 Impact Driver, Drive Size 1/4 in Hex, Drive Configuration Right Angle, Max. Torque 1,600 in-lb, Voltage 18V DC, Brushless Motor Yes, Free Speed 3,200 RPM, Impact Rated Yes, Impacts per Minute 4,200, Number of Speed Settings Continuous, Collett 1/4 in Hex, Cordless Tool Kit Contents (1) Bare Tool, Number of Batteries Included 0, Battery Series M18 Redlithium, Charger Included No, Case Included No, Handle Type Pistol Grip, Built-In Light Yes, Overall Length 5 1/8 in, Wireless Tool Tracking No