Bring out the big gun for tire changing, and other heavy automotive and truck work with Ingersoll Rand 1/2 in. Super-Duty Air Impact Wrench with 2 in. Extension’s mechanism pumps out 500 ft-lbs. torque at a free speed of 7,000 RPM to get the job done fast. Twin Hammer Plus mechanism pumps out 500 ft-lbs. of maximum torque at a free speed of 7,000 RPM Powerful, with smooth, balanced blows Pressure Feed Lubrication System automatically greases the impact mechanism requiring less maintenance 2 in. Extension offers longer reach in those hard to reach areas 1/2 in. Super-Duty Air Impact Wrench with 2 in. Extended Anvil – 244A-2