Brake pipe flaring

To achieve a perfect sealing of brake pipes, the ends have to be flared. Different standards are used and therefore, the aforementioned kit offers the possibility to manufacture different flares. First step is to cut the pipe to the desired length.

Even a well done cut should be deburred to avoid chips entering the pipe and block the fluid.

Then choose the right inserts by comparing with the pipe you want to reproduce. In this case, the pipe is 4.75mm and the flare is DIN.

The tool is assembled with everything needed to compress the copper/nickel pipe at it's end(s).

Pipe from the left stuck in the matrix, hydraulic screw with chosen punch, handle to turn, above grip to hold the tool by hand. There exist other flaring tools to be placed in a vice, this one has the advantage to be taken to the car. First try:

On the left compared to the old flare, on the right a different flare (double bubble) for trial.

Although this is no rocket science, I really have to warn everybody not owning the right skills or tools to let this work be done by professionals. I'm doing it on my own for the love of tools and the feeling to have achieved something by myself. If you're not sure, leave it to a specialized workshop.

Cheers.