Using your GearWrench 80791 tool set is a piece of cake. First, pick the right socket for the job from the 15 standard SAE sockets included. Attach it to the ratchet or breaker bar. If you need to reach a tight spot, use the extension or universal joint. To turn a fastener, just grip the ratchet handle and start turning. The teardrop - shaped low - profile head and the flush - mounted on/off switch make it easy to use in cramped spaces. When it comes to maintenance, keep your tools clean after each use. Wipe them down with a dry cloth to remove dirt and debris. Since they have a full - polish chrome finish, they're resistant to rust, but it's still a good idea to store them in a dry place. Also, don't use the tools for jobs they're not designed for. If you do, it might damage the fasteners or the tools themselves. With proper use and care, this tool set comes with a lifetime warranty, so you can count on it for years to come.