Here is how I make split rings.   Pretty straight forward.  I use one of the Japanese saws with the thin blades to cut.  You can see how I broke the blade on the other side.  But it still works and is sharp.   I have more blades if needed.  I do sometimes places the drill bit into a vice to hold it all steady.  It makes cutting this a lot easier.  But if I am only making a dozen at a time like this I can twist the wire ends like shown and just be careful while cutting through.   The trick is not