For sale is a new Aircat 1/2" air impact wrench.  It is new out of the box with no manual

Spec. from manufacturer:

Provides 800 ft-lb maximum torque and 1,000 ft-lb of loosening torque; Hard hitting twin hammer mechanism delivers maximum power; Grip is ergonomically designed to perfectly fit the hand, providing unmatched comfort for the user; Cross bolt forward/reverse and power management control; Triple heat treated Ni-Cr-Mo alloy steel hammer mechanism parts and anvil provide ultimate reliability