After a long search I actually found some split ring pliers that work,
these are possibly the best split ring pliers made that make the job
easier without damaging your rings.
STANDARD - previously known as small - are perfect for up to #5 rings
The only pliers I'd use on Bucher split rings.
see Video link to see just how easy to use they are.
INDEPENDANT REVIEW by Phil Blakey. PIKE + PREDATOR Magazine
I had been on the lookout for a good set of split ring pliers for a while, eventually buying a pair from Chico's Lures hat are made by Texas Tackle and manufactured completely from high quality surgical stainless steel. What makes these split ring pliers better than the others out there is their design, like all good designs it is simple but very effective. The wedge that opens the split ring is not right at the tip of the jaw, like other split ring pliers; it is slightly set back allowing for both sides of the split ring, to be firmly gripped between the jaws even when spread wide. This simple design makes the changing of hooks safe and very quick, split rings pinging off the end of the pliers whilst hook changing is now a thing of the past.
What also sold the pliers to me was the video of them in action that Chico has on his site, take a look and I assure you that you will be as impressed as I was. They really are as easy to use, as it shows you on the video.
I have kept mine in an open outer pocket in my fishing bag for nearly two months now, after several soakings and countless hours in a damp bag they still look as new. I have purposely used them often and the jaws show no wear at all, not even a burr or blemish and I expect them to last.
Probably the best lure fishing accessory, that I have ever bought, 10/10 and worth every penny.