The Chicago Pneumatic BlueTork Nutrunners, No. CP7600, can tighten wheel nuts to a precise specification without using impact force. It is the only non-impact tool with a shut-off nutrunner available on the market for fleet maintenance applications, according to the company. The BlueTork nutrunner provides high user-comfort when handled, and because the tool uses continuous driving force, instead of impact force, it is quiet at 79dBA, with vibration of less than 2.5m/s. The BlueTork nutrunner enables operators to re-set torque for each use, providing precise tightening to the original equipment manufacturer's guidelines. The shut off valve controls the tightening process, while the torque reaction is taken by a reaction bar. The tool uses a dual motor setup which provides initial run-down at 100 rpm (50 ft/lbs) to quickly snug the nut, while the second motor rotates at 8 rpm to deliver the final specified torque. The BlueTork nutrunner is available in four versions.