Montana, I have a couple of questions. First, what is it about the Galazan bore micrometer that requires "familiarity"? It is about the simplest bore gauge ever made. The Clymer "tuning fork" that I am familiar with is a wall thickness gauge, not a bore gauge. Is there something else in the Clymer line that is a bore gauge that could be described as a tuning fork? The Champlin link you provided pictures a gauge similar to the Galazan gauge, not like the Clymer tuning fork, and also, like the Galazan, very simple to operate.

Last edited by eightbore; 04/11/07 01:24 PM.