902I NEEDLE TYPE LEAD FREE SOLDER TIP (TIP SURFACE .2 mm RADIUS.) - Solderite provides the highest quality lead free soldering tips on the market today. These specially designed tips outlast the competition. The electroplated protective coating on all Solderite Lead Free Solder Station Soldering Tips is over 1 mil. The average soldering station soldering tip is .25 to .30 thick. It is easy to understand why our lead free soldering tips provide a longer life cycle