We all know this.
The tool is everywhere and when you look for it, you can't find it.
This is now a thing of the past.
The tool holder sorts the original Prusa Mini tool and 2 other Hex keys of size 3 mm and 2.5 mm directly on the Prusa Mini aluminum profile.

The assembly is very easy.
For the Nuthaken_v6.4.stl you need support for the hook area.
The toolholder itself does not need any support.

I have attached an assembly instruction in the form of a .pdf-file.