Using your GearWrench 80792 tool set is a piece of cake. First, pick the right socket for the job from the 15 standard SAE sockets. Attach it to the ratchet or breaker bar. When working in tight spots, the teardrop - shaped low - profile head ratchet with the flush - mounted on/off switch will be your best friend. Just turn it on and start turning those fasteners. If you need to reach further, use the extension or the universal joint. As for maintenance, after each use, wipe down the tools with a clean, dry cloth. Avoid leaving them in wet or humid places to prevent rust. If the tools get dirty, you can clean them with a mild soap and water solution, then dry them thoroughly. And remember, this set comes with a lifetime warranty, so if you have any issues, don't hesitate to contact the manufacturer.