Using this Wera ratchet set is straightforward. First, select the right tool from the set using the color - coded tool finder. Then, attach it to the 1/4' drive ratchet head. You can adjust the ratchet head to one of the five locking positions for better access in tight spots. When working, the fine toothing will ensure a smooth operation with a minimal return angle. As for maintenance, after each use, wipe the tools clean with a dry cloth to remove dirt and debris. Store the set in the textile box provided to keep it organized and protected. Avoid using the tools for jobs they're not designed for, as this could damage them. Also, keep the set away from moisture to prevent rusting.