Hi,
You might even try two sanding discs facing one another; run your hand piece at a slow speed; stick that wire right between the two discs
In addition to Kevins suggestion, I’d put the wire to be
tapered/pointed in a pin vise so you could keep it turning while it
is between the 2 discs.
Another way might be to put the wire in the chuck on a handpiece so
that just enough sticks out to taper/point. The hold that at the
appropriate angle on apiece of abrasive paper… After getting it to a
taper/point switch to a finer grit paper to put a shine on it.
Dave