Using the Miniware TS100 soldering tips is easy. First, make sure your soldering iron is turned off and cooled down. Then, insert the tip (like the TS - D24) into the iron carefully. When you're ready to solder, turn on the iron and wait for it to heat up. Use the tip to touch the solder and the area you want to join, and the solder will melt. When using these tips, be careful not to touch the hot tip with your fingers as it can cause burns. Also, avoid using excessive force on the tip, which could damage it. For maintenance, after each use, turn off the iron and let it cool. You can clean the tip gently with a damp sponge to remove any excess solder. Store the tips in a dry place to prevent rusting. If you notice the tip is not working well or has a lot of oxidation, it might be time to replace it.