I used bundy but it does not have a copper look to it, it looks like steel and if anything looks (maybe) like
zinc coated. I bought the K-tool flaring tool from Summit and it works fantastic, would not hesitate to buy it again, it is one of the best tools I have ever purchased.
I was concerned, having seen it on other Cobras, about the pipes getting a corroded look over time, so after completing flaring etc I taped over the ends and painted the pipes with spray epoxy enamel. I used stainless flare nuts and taped them over so they did not get painted, this took two passes with paint/tape and moving the flare nuts to get all the pipe painted (except for the flar itself which I left unpainted).
I read somewhere that annealed stainless is workable to flare, and I'm sure there are people on here that have done pipes in stainless.
