This powerful impact wrench from DeWalt has a 3/4" square anvil and is designed to excel in high torque applications. It can deliver an incredible 1898 Nm of fastening torque, and a breakaway torque of 2,584 Nm. The brushless motor uses the latest technology to deliver the highest possible MWO or Max Watts Out. The DCF964 features the same boost mode as the 1/2" model 961 whereby it runs at a lower power mode for the first few seconds resulting in less vibrations until you really need it. The unit has a tactile button control panel that allows mode selection and LED light selection.