Hello Billy S. There are rulers about 6 inches long with lengths for
ring sizes on the back BUT, you will have to add 3X the thickness of
the metal to that length. Check Rio’s catalog pp.308, item
#166-022/3. Karet 46 (Kenneth Singh) likely also stocks the little
Oppi’s "Metal Techniques has a chart in the back (page 461), but I’m
surprised to note the little formula is not included.
If you order a little ruler, get a set of ring sizers at the same
time for the next person ordering a ring.
Judy in Kansas, where we had the most beautiful snowfall yesterday.
Today things are melting off.
Judy M. Willingham, R.S.
B.A.E. 237 Seaton Hall
Kansas State University
Manhatttan KS 66506
(785) 532-2936 FAX (785) 532-6944