Chicago Durable, Powerful & Ergonomic 1/2" Drive Air Impact Wrench. The most powerful tool on the market in its class: 922 ft.lbs รข?? 1250 Nm of maxim real torque in reverse. Best price to performance/durability ratio, Lightweight due to composite housing, Contoured comfort grip handle instead of TPR injected in handle, Smooth Forward / Reverse Switch on back. Suited for all maintenance applications: Light vehicle tire changing, General maintenance on vehicles and MRO applications. One handed forward/reverse. 3 positions in forward: Low - 180 ft-lbs. / 245 Nm - Medium - 480 ft-lbs. / 650 Nm - High - 730 ft-lbs. / 990 Nm. Aluminum clutch & back housing. Friction ring socket retainer. Full teasing trigger.Twin hammer mechanism, 360 Degree swivel air inlet.