Hi and thanks for response.

Here is how the fine adjuster looks inside:

https://www.dropbox.com/s/s2tx6cgt0j8wm7s/adjuster.jpg?dl=0

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My thoughts was to look the axel from underneath, it have most of the steel to make a hole for a screw.

But may maybe I can fix the problem from the other side as Mikes workshop suggest.

http://mikesworkshop.weebly.com/mill-quill-lock-lever.html

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I will think about all suggestions for some days and I will come back when I have done the job.

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/johannes