1/2 in. Aluminum Air Impact Wrench, Twin Hammer, 585 ft. lbs.
TUZkozs 1/2" Air Impact Wrench, Heavy Duty Double Hammers Impact Gun, 520 ft. Lb., 1/4 Inch Air Inlet, Adjustable Speeds, Matte Black, Pneumatic Tools - - Amazon.com
1/2 in. Composite Air Impact Wrench, Twin Hammer, 1200 ft. lbs., Gunmetal
Astro Pneumatic 1867 1 In Dr Twin Hammer Impact Wrench w/ 6 In Anvil
Berkling Tools 2443J Mini Compact 1/2" Air Impact Wrench - Pneumatic, Light Weight, Jumbo Hammer, Composite Handle | Fits in the Palm and Easily Get Into Tight Confined Space - - Amazon.com
SLAIR 1/2" Composite Twin Hammer Air Impact Wrench Max Torque 1050ft/lb XX-785 - - Amazon.com
CRAFTSMAN 7.5 Amps-Amp Variable Speed 1/2-in Drive Corded Impact Wrench in the Impact Wrenches department at Lowes.com