... 1-2 rounds and have the flare face in friction to make it prettier.4. For Inch:1/4",5/16 ... metric:6mm,8mm,10mm,12mm,16mm&19mm O.D. TubingHow to used:1. Set up the tube with it's point ... head to just out the bar for 0-1mm.2. Be sure to keep the point head of ... cone wll be in eccentric revolution which allows the tube to open gradually, therfore, the bend face will be uniform. CT ...