Using your GearWrench 85999 wrenches is a breeze. When you encounter a stubborn fastener, start by using the non - ratcheting end to break it loose. Once it starts moving, switch to the ratcheting end for quick tightening or loosening. To use the ratcheting end, simply position it on the fastener and start turning. You'll notice that with just a 5° turn, the fastener will start to move. Make sure to always apply the right amount of force to avoid damaging the fastener or the wrench. When it comes to maintenance, after each use, wipe the wrenches clean with a dry cloth. The full polish chrome finish makes it easy to remove any dirt or debris. Store the wrenches in the included tray to keep them organized and protected. Remember, these wrenches have a limited lifetime warranty, but proper use and maintenance will ensure they serve you well for a long time.