However, if I want it to look neater (I meant to
mention this in my
previous message) -- though goodness knows who would care -- I have
been known to use a scalpel or craft knife to cut the copper either
side of a hole and then lift off the small redundant piece. I've also
done that between holes, when I wanted to use two adjacent holes but
isolated from each other.
If I want to mount a 2-row 0.1" header on veroboard/stripboard (something
I do quite often :-)), I cut down the moddle of each row of holes with a
sharp knife, and remove the little (0.1" wide approx) bits of track with
a hot soldering iron -- they come off very easily. Then I fit the
connector and solder the pins to the 'half holes' that are left. Never
had a problem doing this.
And like you, to cut the traces I use a 3.5mm drill bit in a pin vice.
The latter is a much under-rated tool in my opinion, I'm always using one
of mine for something.
-tony