Yes you use the same tool.
I have the gray PB pipes and need to transition to PEX.
The Polybutylene to PEX adapter fitting comes with a copper colored crimp ring for the PB side and a black crimp ring for the PEX side.
Can I use the same 1/2" rental crimp tool (which says its for PEX) for both rings or do I need a PB crimp ring tool as well?
I have had different answers from different people and would like clarification.
Why are the crimp rings different? They look to be the same size & thickness.
What would happen if you used a black one on the PB side or the copper colored one on pex?
I don't know, never tried it. Maybe the hardness of the ring is different?
There both copper and the same size. Don't know the reason why one is painted black. I guess it's so the can call it a PEX ring instead of a POLY ring.
The black one should be just slightly different