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Recently bought this from Amazon. Appears to be well made. Easily loosen a lug tightened to with a torque wrench at 80psi air pressure. I am sure it can do more but my torque wrench is limited to 100. Seems max torque is true. My only complain is the forward/reverse change needs tremendous effort. I had to hammer it the first time but easier afterwards. This wrench will do well in those tight areas. The torque adjustment knob is built in the air inlet housing and handy.