Impact wrenches manufactured by the best; Dewalt, Makita, Mikwaukee, Hitachi, and Ingersoll Rand.  1/2 inch and 3/4 inch models are available anywhere from 200 ft-lbs to 450 ft-lbs of torque.  All of our impact wrenches are fully reversible and designed to have an excellent power/weight ratio.  Additionally, the majority of our impact wrenches have ergonomically designed handles to reduce hand fatigue under extensive use.