Thanks very much for your help!
The Arceurotrade tutorial is great, but they mention they use special equipment for that and suggest maybe not to do it without it.
Your other suggestions seems good, but this is not my first language and I'm only really used to smaller mechanisms of musical instruments (not like a lathe), so maybe someone has a photo or a more specific explanation? The English names of the tools/parts a bit tricky for me to understand.
Thanks again