Using your Milwaukee 49 - 80 - 0400 soldering iron pointed tip is easy. First, make sure you've paired it with the Milwaukee M12 Soldering Iron. Plug in the iron and let it heat up. Once it's hot, you can start soldering small components and wires. Be gentle when applying the tip to the soldering point to avoid damage. As for maintenance, keep the tip clean. After each use, wipe it gently to remove any excess solder. If the tip gets dirty or oxidized, you can clean it with a damp sponge. Store the tip in a dry place to prevent rusting. Also, don't forget that using it with the Milwaukee M12 Soldering Iron will give you the best performance. Follow these steps, and your soldering iron tip will serve you well for a long time.