Twin hammer design - Twin hammer mechanism delivers smooth and balanced yet hard-hitting blows 
Variable speeds - variable speed throttle with three forward and one reverse setting for optimum control of speed 
Extended anvil - 6-inch long extended anvil allows easier access to deep set or recessed fasteners 
Efficient motor - premium efficiency air motor uses only 10 CFM of compressed air so you can work longer 
Peak torque - delivers 1, 900 ft-lb of maximum available torque 
Free speed - free running speed is 4, 000 RPM 
Aluminum casing - aluminum casing protects the machined titanium and tungsten alloy hammer mechanism during heavy duty applications 
Npt inlet - 1/2-inch NPT threaded inlet for use with standard 1/2-inch or larger diameter compressed air lines