The reed holder can easily be changed to adjust your reed guillotine precisely to your needs.
This allows you to use your reed guillotine for all reeds of the oboe family.
This self-arresting reed holder is suitable for oboe d'amore, English horn, Viennese oboe as well as for all historical oboes.
The length of the mandrel can be variably adjusted to your staples.
You can find a tutorial for this here: