[DeTomaso] Brake Flaring Tool

[JDeRyke at aol.com]

FWIW, double flairing is only necessary if the tubing you're using is made 
with a seam; the fold in a double flair tends to keep the weaker seam from 
splitting. 'Std'. brake and fuel line from the '40s to present was originally 
made of 'Bundy-weld'- a sheet of mild steel bent into a cylinder and 
seam-brazed. 
Seamless tubing can be single flaired without risk, and it's nearly 
impossible to successfully double-flair stainless tubing due to work-hardening 
during the first flair bend. I've never used a European   ISO or 'bubble-flair' 
tool but it appears to be easier on tubing than U.S double-flair. The Euro 
tubing is also slightly smaller in OD than U.S. tubing so most of our 
flairing tools don't grip it tight enough to work very well. Cheers- J Deryke