Impact Driver Kit, Drive Size 1/2 in Square, 1/4 in Hex, Drive Configuration Straight, Max. Torque 1,800 in-lb, Voltage 18V DC, Brushless Motor Yes, Free Speed 3,400 RPM, Impact Rated Yes, Impacts per Minute 4,200, Drive Type Worm Drive, Number of Speed Settings 3, Collett 1/4 in Hex, Cordless Tool Kit Contents (1) Bare Tool, (2) Batteries, (1) Charger, Number of Batteries Included 2, Battery Capacity (2) 4.0 Ah, Battery Model No. 55EX99, Battery Series CORE18V, Charger Included Yes

Impact Driver Kit, Drive Size 1/2 in Square, 1/4 in Hex, Drive Configuration Straight, Max. Torque 1,800 in-lb, Voltage 18V DC, Brushless Motor Yes, Free Speed 3,400 RPM, Impact Rated Yes, Impacts per Minute 4,200, Drive Type Worm Drive, Number of Speed Settings 3, Collett 1/4 in Hex, Cordless Tool Kit Contents (1) Bare Tool, Number of Batteries Included 0, Battery Series CORE18V, Charger Included No, Case Included No, Handle Type Pistol Grip, Built-In Light Yes, Overall Length 5 3/4 in