Using the Klein Tools 68402 Combination Wrench Set is easy. Just pick the right - sized wrench from the set according to your needs. The 15 - degree angle of the open and box ends makes it easier to use in tight spots. When you're done, put each wrench back in its marked pocket in the included pouch. As for maintenance, keep the wrenches clean and dry to prevent corrosion. If they get dirty, you can wipe them with a clean cloth. Also, don't use the wrenches for tasks they're not designed for, as this could damage them. And store them in a cool, dry place to keep them in good condition for a long time.
