Primefit AT1001 1/2" Air Impact Wrench with Adjustable Power Settings, 230' per Pound Torque, 7, 000 rpm 1/2-inch air impact wrench with 1/2-inch square drive anvil Ideal for removing Lug nuts when changing tires Can be used for various other automotive and maintenance or repair applications 5.1-Scfm delivered at 90-psi with a 20-Percent duty cycle Comes with a 1-year limited warranty