Using your Milwaukee M12 1/4 Hex Right Angle Impact Driver is easy. First, make sure the battery is fully charged. Insert the appropriate 1/4 - inch hex bit into the driver. You can adjust the speed using the variable - speed feature according to your task. The extended paddle switch allows you to hold the tool from different positions for better control. When using it in tight spaces, the 1.4 - inch head diameter gives you great access. As for maintenance, keep the tool clean after each use. Wipe it down with a dry cloth. Store the battery in a cool, dry place when not in use. Also, make sure to use the REDLITHIUM Battery Pack for the best performance. If you encounter any overload situations, the REDLINK Intelligence will protect the tool. Just let it cool down and check for any issues before using it again. And remember, the tool comes with a 5 - year warranty, so if you have any problems, reach out to the customer service.