Hdcarpentry - Dewalt 20v max mid torques. The DCF894 and DCF891 look very similar but there is a big difference in performance. The DCF 891 has about double the fastening torque as
DeWalt DCF894M2 18V XR Brushless 1/2in Compact Mid Torque Impact Wrench FULL KIT with 2 x 4.0Ah