Using your GearWrench 85597 wrench set is a breeze. First, pick the right size wrench from the set (ranging from 8mm to 19mm) for your nut or bolt. Place the wrench on the fastener, and you can start turning. Thanks to the ratcheting feature on both the box and open ends, you don't need to take the wrench off to keep working. Just look at the stamped arrows on the head to know which way to turn. When you're done, store the wrenches in the included rack to keep them organized. As for maintenance, the bright chrome finish is easy to clean. Just wipe it with a cloth. Avoid using it on fasteners that are too big for the wrench size, as it may damage both the fastener and the wrench. With a limited lifetime warranty, you can use this set with confidence for a long time.