Thread: coal issue
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Old January 24, 2012, 01:38 AM   #19
mrawesome22
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Join Date: November 9, 2005
Location: Ohio, Appalachia's foothills.
Posts: 3,779
A thousandth is just you pushing too hard. Or a very slight bullet imperfection. A nominal human hair is 30 thousands of an inch wide.

You have to develope the machinist's touch.
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