Bulzeye, yeh, these pliers work very well. And do you see that little lever sticking out to the side? There is a little tit sticking out in the middle that you place in the split of the nockset, cam over the little lever, and it's splits the brass nockset open for you. You'd have to see it to see what I'm saying but I use them at the shop all the time.
Of course, if you quit using brass nocksets then you don't need the pliers, unless you are working on other bows.