i've never used a chain breaker, i just lay the chain over the bench vise and adjust the vise jaws to just allow enough for the pin to go and whack it with a punch, then when its started use the old groundoff nail method. i thought everyone did it this way...more to learn every day. if you switch to the no 41 chain the links, halflinks and masterlinks are way way cheaper and more available, but i guess everyone knows this.