Does anyone have a recommendation for a good quality deburring/chamfer tool for 3/16" brake tubing up to, at least, 3/8" for hydro tubing?
Have been improvising with files and drill bits but have decided to turn semi-professional!
There are some on the internet but the plastic AC/DC ones don't inspire confidence - but willing to be corrected if they work.

What are you cutting the tube with at the moment?
I use a small pipe cutter and the end is quite well cut - usually I only have to go over it with some fine sandpaper to clean it before flaring.

I am using a Record mini tube cutter. I just wanted the inner and outer edges to be deburred to get a good smooth seal when flared.

I use a mini tube cutter which has a built-in deburring tool for the inner surface.

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Clive G
1969 Mk II Cooper S
1970 MK II Cooper S
1963 Triumph Spitfire
1982 RX-7 Series 2

Thanks, Clive.
That is clever. Will look it up.