This is a holder for a Multi-Tool from a company called "Ferm". I have no idea if this works with other Multi-Tools, but it could work. The diameter of the upper ring is 48mm, and 36mm for the lower one. Maye it works for you? If so, please let me know, so I can add it to the description.
Unfortunately you can't really scale the model since the insert won't fit into the wall then.
If you wan't to edit the model, I have attached the STEP file.
The author remixed this model.
Add-On / Holder for RostaP's Honeycomb Wall system.