Earthquake XT 1/2 in. Composite Air Impact Wrench, Powerful Twin-Hammer Impact Mechanism for Extreme Torque with Less Vibration, 1200 ft. lbs. of Bolt Breakaway Torque, Push-button FWD/REV (Red) - Amazon.com
3/8 In. Cordless Compact Impact Wrench Variable Speed Trigger 325 ft. lbs. Breakaway Torque Tool Only By Bauer - Amazon.com