The engineering of this Ingersoll Rand 1/2" impact wrench, No. 231HA-2, has made it one of the most popular tire changing tools in the vehicle service industry. The 231HA-2 features a 2" extended anvil and delivers 590 ft/lbs of maximum reverse torque and 8,000 RPM for quick and easy tire installations. The No. 231HA-2 is designed with a pressure-fed lubrication system, adjustable power regulation and a handle exhaust to direct air away from the user.