I got the mastercool kit and have used it a few times now. It is definately akward when you first start using it. Double flares on standard brake lines have been perfect ever time. Just did some more aluminum fuel lines yesterday and after using the mastercool kit with the 37* dies I did find myself pulling out my imperial 37* tools as it just seemed faster and easier.
I'm obviously missing something (mentally) since I haven't been able to figure out the GM push connect flare. If I used the Silver die marked for GM Push connect with the short line holding die the tool does not have enough throw to compress the line. I use the GM push connect die with the tall line holding die push connect tool for the fuel line fittings the silver die isn't long enough to form the fuel line.
Does anyone know if the GM push connect flare is the same as an A/C line flare?
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