Turning an used ball bearing into a nice ring with some very basic machining on the metal lathe.
I got the habit to keep all the used ball bearings that I take out of tools I restore, used ball bearings are usefull as spacers for inserting new bearings and they can provide high quality steel for forging projects if big enough! Now I found a nice and simple way to upcycle those bearing that are small and not much usefull as steel stock material. Happy with that!
By now I have a decent selection of used bearing in many different sizes so I think I can make a ring pretty much of any size by boring the inner race with the metal lathe.