[Ruy Dias de Bivar]

Dremel motor tool works wonders.
Then their is the soapy finger, then the thread wrapped around the knuckle to shrink it.
A three corner or teardrop jeweler’s file will work.

[Idaho_Cowboy]

DW-40! Man, don’t they have any rednecks over there?

[arthurus]

Soap wouldn't deal with the finger in the pưicture. Another method not recommended for actual use: When in the Nam a friend tied on the ring I wore and couldn't get it off because his finger had swollen when he pushed it on. Being a wise ass I told him to keep pulling it back and forth while I got the tool I had for that. He knew I had done jewelery work before and he started busily trying to manipulate the ring. I reached a buck knife out of my pocket and opened the blade. The ring came right off. I said, "See, it works every time." He said," naw! you weren't gonna use that knife!" I said "Well, I just did."