Loose roller on new balance staff

[jdrichard]

I googled a bit for ”hole closing punches” and the method appears mainly used for closing worn pivot holes in brass clock plates.

Which is obviously a quite different thing than working on a tiny roller from a wristwatch movement that , as pointed out, may be made from a much harder material and may split rather than give away.

If there’s experience out there from this specific item, please chime in as I’m interested in arguments in any direction.



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I have pinched a roller table hole to reduce it’s size when I was making a balance staff and shaved off a bit too much material. As was said, just take your time , punch it a few times then test it and punch it again. I only punched it on the jewel side without an issue. Try not t screw up the jewel, but if you do, you may need to shellac it back in place.


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