Features and Benefits:�Air hammer powered. Apply air hammer vibration and torque to any impact socket. Utilize air hammer and punch to access inaccessible fasteners. Remove most stubborn nuts and bolts by repetitive hammering. Hyper sonic vibration eliminates thread galling. Indexed holes designed to keep Shockit Punches from slipping off driver. Square Drive Plug Breaker Bar allows breaker bar and air hammer simultaneous operation. Low Profile Drive Plug allows for use in tight spaces with an air hammer. Must be used with Shockit Punches for maximum performance and warranty coverage.Includes components:LT1940-1/2-S - 1/2" Short Throw Shockit DriverLT1940-1/2-L - 1/2" Long Throw Shockit DriverLT1940DP-1/2 - 1/2" Low Profile Drive PlugLT1940DPBB-1/2 - 1/2" Drive Plug Breaker Bar