On Tue, 29 Mar 2011 00:32:29 -0400, "Wild_Bill"
wrote:

The types of clamps I'm thinking of (but can't remember the notable brand
name) could turn your workholding plate into a 3 or 4-jaw chuck, for that
specific size of rings.
http://www.miteebite.com/

Forgot to include some retail outlets in prior post
http://www.wttool.com/index/page/pro...mps+Mitee+Bite
http://tool.wttool.com/tools/Mitee%20Bite
http://www.newmantools.com/clamps/

for some user feedback see
http://www.cnczone.com/forums/genera...te_clamps.html

-- Unka George (George McDuffee)
...............................
The past is a foreign country;
they do things differently there.
L. P. Hartley (1895-1972), British author.
The Go-Between, Prologue (1953).