What is Cunthair?
1.
a very small unit of measurement
can you turn the tv down just a cunthair?
2.
Smallest unit of measurement used in everyday American construction industry
It's a cunthair off level/plumb/square etc.
Take and cut a cunthair off this 2x4.
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3.
A unit of measurement equal to approximately three-thousandths of an inch - approximately the thickness of a sheet of paper. Frequently used in industrial and construction environments.
"Move that board over just a cunthair before you nail it in place."
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