This causes the jump rings to look more cone shaped(seen from
the side) than donut shaped with straight sides. Anyone have
the answer ? Always appreciate any help.
If you’ve ever seen how a wedding band reducing machine works,
you’ll see how the following procedure works too. Take the jump
rings, close them as best you can, which will still leave both
that taper, and a bit of a twist, and insert them large side
first into either a suitible hole in a bezel block, or into the
smallest depression you can fit them into in a dapping die.
Gently compress the rings down into the depression. Best way is
with a press of some sort, but vise jaws or just a flat steel
plate and a hammer will work too. The dapping die does leave a
little facet mark around the ring, but it will true it up very
nicely, both for the twist and the taper. Closes it tighter
than a drum too. This is also a good way to close and flatten
very heavy wire jump rings as well, when you need them really
round and flat. A variation consists of placing the jump ring on
a flat surface, large side UP, and gently hammering a bezel
closing punch over the ring. Be careful with this one, however,
as you can break those punches with a hammer. They were really
intended as bezel closing BURNISHERS, driven by hand, not by a
Hope this helps.