Using your GearWrench 81391 tool set is easy. First, pick the right socket size for the fastener you're working on. The high - visibility stamped size markings make this a breeze. Attach the socket to the 1/4 - inch drive ratchet. If you need to reach a hard - to - access area, use the locking flex head ratchet. You can adjust its angle using the 9 - position push - button locking design. If you need extra length, attach the extensions or the universal joint. When turning fasteners in tight spaces, the 3° swing arc of the 120XP ratchet will be really helpful. As for maintenance, after each use, wipe down the tools with a clean cloth. The full - polish chrome finish is easy to clean and resists corrosion, but it's still a good idea to keep them dry. Store the sockets on the durable socket rail to keep them organized and secure. And remember, this tool set has a limited lifetime warranty, but make sure to use it according to ASME specifications. Also, be aware of the Prop 65 warning when using these tools.
