Patent ID: 7413027

Claim:
An impact power tool for use in delicate hand working operations, said impact power tool comprising: an air delivery system operable to communicate with a pressurized air source; a hand held device including a work tool and an air actuated piston drivingly coupled to the work tool and in driven communication with the air delivery system; and a drive assembly operable to selectively and variably control the actuation of the piston, said drive assembly including a variable speed motor and a valve drivingly coupled to the motor, said air delivery system further including an air regulator upstream of the valve and operable to selectively and variably control the pressure of air flowing downstream therefrom, said air delivery system further including an air storage tank in communication with and disposed between the air regulator and the valve, said air storage tank including a tank inlet, and a tank outlet, and an internal air chamber in communication with both the tank inlet and tank outlet.