Ok, so my TN kit burned through my lower ac line...had a custom one made and installed it to find out i have a hole in my upper ac line So I'm tryingto figure out how to get the upper ac line off??? I know you need those ac disconnect tools to get the line off from the condenser, but how do I get the line off from (look at pics)

This is the line


This is where I need to remove it. You can't see in the picture, but on the other side of that ring looks to be a spring inside it.



Can these tools also be used for the part I need help with?