Amazing that something that someone would pretend is a drill will rivet out at all.
But then Ian has the special drill for drilling around corners.
"Drills are strong but brittle." Well, American drills are. Chicom drills......vary.
I'd cut the piano wire to length with an abrasive cutoff wheel in a dremel, then spin it
in my fingers against the fragile disk to round the ends. Finally, put a bit of a kink in
it, maybe .010-.020 or so, and then tap it into place. The kink puts enough tension to
hold it in without tending to work out, at least not quickly. I ran a pair of Gold
Cups as my IPSC guns for about 7 or 8 years, and this worked better than the
factory pin or the roll pin. One of those GC's lives on my nightstand. It is
a gun that I
know is 100% reliable. I added a tritium front sight when it went
to that duty station.
Bill