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March 1998

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Subject:
REQ: HOLE LOCATION TOLERANCE
From:
starr devere <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 3 Mar 1998 10:50:11 -0700
Content-Type:
text/plain
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text/plain (24 lines) 
I'm interested in finding the tolerance for true hole position for class
C boards less than 12".  I found a spec in paragraph 5.4.2 of IPC-D-275
that gives .003" in the units of "Diameter about True Position".  I just
want to know how far from true dimension two holes can be.  Can anyone
explain the .003" tolerance in layman's terms?
Thanks

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