DO NOT USE Single flares in brakes lines! Theres a tech tip on how to do this. It will take several tries to get it right. I think a critical thing is to take a file and bevel the edge of the tube before setting the die over it. Toss a drop or 2 of oil on it and try it again. I use the 20$ tool from the flaps, and it took a few tries to get it right. Keep trying and youll get it.
Jeff
