Soldering Tip T18-C2 Shape 2C for Hakko FX-8801 soldering iron (compatible with 900M-T-2C)
This type has a shape like a cone or column cut at a slant, which allows users to select the cut surface size depending on the workpiece.
It is used for drag soldering and pre-tinning of lead wires.
How to use the Shape BC/C and examples