hammer bore distance

[BobDavis88 at aol.com]

In a message dated 10/22/2007 9:47:17 AM Pacific Daylight Time, JD writes, in 
response to Cal Munson's question::

>...I am wondering what  would be considered  reasonable tolerances 
>in the ideal bore distance?

Half a millimetre.

JD

I was going to say a millimeter, but certainly not 1/4" (6.35mm). You'll have 
lots of problems, including poor tone from undercentering, heavier touch from 
the friction of the shank being too low, and probably the inability to get 
enough blow distance due to the shanks hitting the rest felts. 
 
What information was given to the person who bored them? 
 
Bob Davis



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