Ok, it is special, but can be used for many things. That's what I meant - not a dedicated one-use tool.

When I did the job, I though about using a pliers, but I was concerned about getting the crimp tight and consistent. The welder is always available, so, went and welded it together. For sure it will not leak nor come apart on its own.

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Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport