I need to make a connection between polybutylene pipe and pex pipe. I have found a pex to poly converter to do this. What I am unsure about is the crimping tool. Do I need two crimping tools (one for the poly connection and one for the pex connection) or can a pex crimping tool also be used on poly pipe? Alternatively, is there some kind of universal crimping tool that can handle both types of pipe? Any recommendation of specific crimping tools that people have used successfully would also be appreciated.