Bending and flaring brake/cooling lines

Not Sure where I should Post this thread at. but i'm going to buy a flare tool and tubing bender so that I can bend/flare my brakelines and new cooling lines for the transmission.

whats the difference between the double flare and bubble flare?

I believe the double flare is what I need for the brake lines.

which one do I need for cooling lines?

and what are the angles of the flares that I need for both the brake lines and cooling lines?

thanks.

also whats a good place to get this tool from? summit seems to have quite a few of them.