DEWALT 20V 1/2 HIGH TORQUE IMPACT WRENCH Complete tough jobs utilizing the power of the DEWALT 20V MAX* XR 1/2 in. High Torque Impact Wrench. Our highest rated torque 1/2 in. impact wrench** delivers up to 71% more torque***, making it ideal for large sized pipe flanges, grooved couplings, wheel lugs, concrete anchor bolt setting and many other heavy-duty impact wrench applications. PRECISION WRENCH mode is included to help prevent overtightening in forward, and run-off in reverse, for user control, as well as a 4-mode push button switch to easily change speeds for different applications.