Using the DeWalt DCF902B impact wrench is easy. First, make sure you've got a fully - charged battery (sold separately) and attach it to the tool. Then, select the appropriate mode on the 3 - mode switch according to your task. If you're worried about overtightening, use the Precision Wrench™ mode. Insert the 3/8 - inch square drive bit into the tool and start working on those nuts and bolts. When you're done, detach the battery and store the tool in a dry place. Remember, this tool is designed for hard - to - reach areas, so take advantage of its compact size. Keep the tool clean, and if you notice any issues with the motor or the LED lights, contact DeWalt's customer service for assistance.
