GP101 gas soldering iron standard iron tip. Since it is a soldering iron tip with low durability, it always carries a changing iron tip together with the main body. This time, the spare replacement has gone, so order here. It is saved because it is cheaper than buying at others.
I thought about buying other gas type soldering iron, but I liked GP - 101 of the main body, so I bought it because it is cheaper to buy this part. I am satisfied because I returned to the performance when I purchased the main unit. However, I would like to have more expensive and longer life expectancy.