I use 18k, with the normal ring design that has a thinner side towards the palm, counting on that thin part of the ring to break before a full degloving. I did ask about whether it was possible to get a 14k ring that came in two halves with 22k linkages between the halves (the idea being that it would split very easily in an emergency but most of the ring would be scratch resistant), but after looking at me like I had two heads one jeweller said it wasn't possible and the other jeweller quoted me some obscene price which, fair enough. Regardless, still remove the ring before you work with any tools that are a risk though, like a belt sander etc. If you use a workshop regularly, I would just build a designated container at a convenient height for your wedding ring, so you always know where it will be if it's not on your hand.
