I have a music box mechanism which doesn't work well. I suspect that it needs cleaning/lubricating. So rather than buy a new mechanism for a whole $9.99, I've decided to take the time and effort to fix this. Which will mean milling off the "rivets", and then drilling and tapping into the 'pot metal', to reassemble the thing afterwards.
Any advice on tapping "cheap" material?
tschus pyotr