Max air pressure of 175 PSI. Rated free speed of 4200RPM. Max torque of 1900ft-lbs. 6 levels of speed adjustments, 3 speeds forward and 3 speeds reverse. This 1 inch impact gun is designed for general repair work on trucks, tires and heavy duty equipment, suitable for profession and home use.
 
Package includes a 1-1/2"(38mm) and a 1-5/8"(41mm) socket, a 1/2" NPT air inlet, an easy operate internal hexagonal wrench and a Mobil-oil pot.