Wrenches also features Precision Wrench™ Control which helps sense when a bolt is getting tight and pauses before impacting to help avoid over-torque. In reverse, Precision Wrench™ Control regulates how quickly a nut or bolt is removed, helping to prevent run-off. With an efficient brushless motor that provides increased efficiency and runtime over brushed units, the tool is a powerful cordless option. In addition, the Mid-Range Impact Wrench includes a variable speed trigger and LED light to help provide visibility in low light situations