There is no point in economising on brake pipes or their joints – either they are leakproof or one day there won’t be any brakes.
Here is a professional flaring tool at an affordable price. Fit it in your vice, screw the clamp down on 3/16″ or 1/4″ diameter brake pipe.
Use the fast cam action on the punch tool to form perfect single or double flares.
Also available: DIN Pipe Tools.