Interesting... I'm not familiar with the Parker tool, but I have a hard time imagining why SS would hurt it in any way. I would think at worst it would simply fail to make a proper flare for some reason. Perhaps someone here has direct experience?

do it yourself
 

I used the rolo-flair and a lot of oil and made the line from stainless steel. Just go slowly while making the flare. The line goes over the top, which is for sure a much easier routing. It took me two tries to make the line, but it has been perfect now for almost 6 years.

Michael, I'm guessing it's because the forming cone on the tool is on the soft side. Mostly I hadn't attempted it because, unlike the ratchet handle that gets used for a hammer (who, me?) but can be easily replaced at the local Ace Hardware if necessary, the Rolo-Flair parts are a little less convenient to come by. Since it's been done (see below) I'm going to give it a try.


Thanks for chiming in, Robert. Any chance of a photo?

Again, thanks everyone for the input. This may seem like minor stuff but by thinking this sort of thing through in advance, I find I work more efficiently when I get to the hangar. Thus speeding the completion of my project :)