Using your DeWalt DWADENDEXT-2MM is a breeze. First, pick the right socket (7mm, 8mm, 10mm, or 13mm) for your job. Attach it to the 6-inch extension. Then, connect the tool to your impact driver with the ¼ inch hex shank. You're ready to work on a variety of tasks. When using it, make sure the impact driver is set to the right power level for the job. This will prevent any damage to the sockets or the extension. As for maintenance, after each use, detach the sockets. Clean off any metal shavings or debris. You can also clean the magnet in the socket to keep it working well. Store the tool in a dry place when not in use to avoid rust and damage. Following these simple steps will keep your DeWalt DWADENDEXT-2MM in great shape for a long time.