Pietta quality - nipple threads

I recently acquired 2-36 cal 1851 steel framed Navy revolvers. They are new and have never been fired. I thoroughly inspect and clean all new guns I buy, so I proceeded. I found one of the nipples misthreaded in the cylinder such that it turns, but with great difficulty and I can't get it out. I started wrecking my nipple wrench on it and stopped. The guns were originally puchased from Dixie Gun Works and I spoke with Jamie this morning. He was great on the phone, so the cylinder will be going back for his opinion on it. Anyone else have this issue? I think I need a new wrench. Any recommendations out there. I need a sturdy wrench which won't bend or screw up the cylinder or nipple. THANKS!!!

Two recommendations:

RMC-Ox Yoke model ML063 (http://www.rmcsports.com/catalog.htm) and

Cash mini rachet driver with hex drive bit for pistol nipples (http://www.octobercountry.com/products3.php?productid=1139)

Both are hardened steel and fit most revolvers (the ML063 fits a wider range). Both excellent quality.

Make one. Best nipple wrench I've ever used....

http://www.thehighroad.org/attachment.php?attachmentid=130738&d=1289914335

Yup. I found info on using a 3/16" socket. That's what I need to do. I just sent my cylinder off to Dixie Gun Works. I suspect they have a few tools and a padded vise to remove the problem nipple and hopefully clean the threads. Thanks

Don't need a padded vise. Two 5/16" wood dowels, a drill press with a vise on the table and a modified socket like the one above will do it.