No special chisel required although I think that you're right, the
tool did come with a flat-bladed cutter back in the dark ages when I
got it. Haven't seen that gizmo for years. A good set of wire cutters
works just as well (better, perhaps).
But it is Da Bomb for daisy-chaining. I rarely use it (or any wire
wrap) nowadays but I do have a "duty" CPLD on a break-out board with
0.1" headers -- for prototyping or the occasional glue -- and it's by
far the fastest way to collect and tie all of the unused pins.
I've done some daisy-chaining in my day, but I soldered wire-wrap wire
point-to-point. I filed the rivet off the blade of a WSU-30, and clamped
the blade in an X-Acto handle. I'd strip a few inches of insulation,
solder the end to the first pin, then loop the wire around and lay the
insulated part of the wire along the path I intended to take. I'd grab
the wire there with the tweezers, slide it into the stripper blade, and
slide that chunk of insulation right up to the joint. Then, of course,
the insulation was exactly the right length for the next joint. If I
needed to daisy-chain them, I'd just keep doing the same thing. These
sockets are all already tacked on Vector Pad-Per-Hole, of course.
Cheers!
Rich