A very simple question, so sorry for this, but I have searched many online docs and cannot find a simple answer. I have a hole specification of 3.4 + 0.13 (picture attached).
What does the +0.13 mean?
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2 Answers
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If I am not mistaken this probaly refers to the tolerances (the lower and higher acceptable dimensions of the diameter of the circle).
i.e. : minimum is 3.40mm, and maximum should be 3.53mm
In your particular example you need 4 thru holes within the tolerances stated above [3.40, 3.53].
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answered Sep 12, 2020 at 14:59