Sumake 1/2 Inch Air Impact Wrench; Max Torque: 1,000 ft-lbs, 1,491 N-m ST-C554S - Amazon.com
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VEVOR 1 Inch Air Impact Wrench, Up to 2730 ft-lbs Reverse Torque Output 1" Pneumatic Impact Gun Lightweight w/ 2 Handles for Heavy Duty Repairs and Maintenance - Amazon.com