Hi George, Tuesday, May 3, 2005, 4:03:57 AM, you wrote: GA> I think his "Being soft enough to grind easily" trashes invar in a GA> heartbeat. In my experience of grinding, both metals and glass, it's more a matter of "being hard enough to grind easily" -- Best regards, Richard _______________________________________________ ATM mailing list http://www.atmlist.net/