Every fountain pen uses a nib to write with and it is made up of three parts which are the nib, ink feed, and the nib housing. When these three parts are assembled, they are fitted to the bottom end of the pen in what’s known as the nib section.
Many fountain pen nib units are manufacturer specific and cannot be interchanged with other manufacturers fountain pens. However, there are some nib manufacturers whose nibs are interchangeable with different makes of fountain pens. In this guide, we will cover all the main manufacturer’s nibs and nib sizes as well as how to replace the nibs.