Summary

Hi, Bonjour !

French guy proposing a "centralizer" for cladding (paralleloid).
This is called a Cladder "Claire voie".

I've replaced the main holes by two nut that I've worked with my driller.

Perfect to align with a bit of glue...

Look at this video for usage...
https://photos.app.goo.gl/T6d4ykh2FbTwsdmj7