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pierdesign, I'd love it if you could cite chapter and verse from a standard saying anything with an internal diameter dimension is a hole. Better yet that TB hole tolerancing is suggested/required. I was of ctopher's frame of mind on this when I posed the question (that is, NOT every female...

ctopher - I'm glad to hear from you, but we are in a minority here. Do you have any references to back up your/our position on this? By the way, so far there has not been one response from anyone whose company uses separate TB tolerances specifically for holes. Do you? Anybody? I know FLIR...

Sorry, my last post was in error - the complete block tolerance in the drawings I question: FRACTIONS ± 1/32 DECIMALS .XX ±.015 .XXX ±.005 HOLE ? .XX ±.005 .XXX ±.003/-.001 It's not that I argue about the general idea of tighter block tolerances for holes...

Here's what they have after the usual block tolerances: HOLE ? .XX ±.015 .XXX ±.005

Partly in response to dingy2, and to further clarify, the separate block tolerances for holes in the drawings in Madsen's book are on the diameter, not for location. I'm not concerned about gaging, rather about airtight communication of design intent. I'm not from QA - I guess I am fishing for...

I don't think I was entirely clear about my root question: Is the definition of a "hole" sufficiently clear and known to all, such that it is safe to specify a characteristic of all "holes" in a drawing and be confident that there will be no misinterpretation. Is a spotface/counterbore a hole...

In David Madsen's GD&T book, several example drawings have a separate set of tolerances for "holes" in the title block. By inference from his examples, Madsen seems to interpret any turned or drilled female cylindrical feature as a "hole", including counterbores. Does anyone out there follow...