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 DCF894 18V Cordless Impact Wrench 447N.m Brushless Motor Lithium Battery Rechargeable 1/2 " Electric Wrench Power Tools