Some of the process to make those little ends for the hard lines. Just a lot of processes for a bunch of these little pieces.
Facing cut
Center drilling
5/32 slightly under hole
Threading hole .25 deep
Tapping for m5 thread
Beveled end
Slightly over 5/32 for solder .10 deep
Had to make 14 if um.
These little buggers were time consuming !!!