Originally Posted by
ValVal
http://www.pedros.com/tutto.htm
this is, to my knowledge, the only tool that can break all chains. Problem is it's new and nobody can vouch for its durability.
Well, it's not the only one, because as I said, I have the Rohloff Revolver, which can do any chain type, and is probably better quality than the Pedros, while not too much more expensive.