Includes 1/2-in 150 RPM Air Ratchet Wrench - JSM-31
From the Manufacturer
The JET JSM-31 1/2" square drive air ratchet is designed to give a maximum of 50 ft./lbs of torque and will require an air consumpton of 3 CFM at 90 PSI. There is a steel spring ball reatainer for rapid socket changing along with a variable speed throttle for better control. Hardened steel gears for long life and ball bearing construction through out.