At the 4WD Mechanix Magazine site, you will find my article and series of how-to videos on forming brake tube flares. The information below is excerpted from that URL page. To see the entire article and HD videos on how to form tubing flares, visit: http://www.4wdmechanix.com/video-series-how-to-flare-automotive-brake-tube-fuel-lines-and-cooler-tubing/
Brake rubber parts are vulnerable to damage, wear and deterioration. One of the quickest ways to cause brake rubber parts failure is exposure to petroleum or mineral base solvents, oils or compounds—including the popular products