Using this Hakko soldering tip is easy. First, make sure your FX - 888 soldering iron is turned off and cooled down. Then, swap the old tip with this new one in just 30 seconds. Once it's in place, turn on the iron and set the temperature according to the type of solder you're using, whether it's lead or lead - free. When soldering, use the wide screwdriver - shaped tip to quickly heat large parts or do thru - hole soldering. As for maintenance, keep the tip clean. After each use, wipe it on a damp sponge to remove any excess solder. Also, store the iron in a safe place when not in use to prevent damage to the tip. And remember, always follow safety guidelines when working with hot soldering irons.