I am surprised MSC won't ship to you. Those taps are part of the US standards, but not in common use. Mostly those are used on clocks, gun sights, etc. I have found several suppliers that will do H2 limits, (the most common) but nobody seems to have H11 in the small sizes. I think it's going to be difficult to find that much of an oversize in such a small tap. I will continue looking and let you know if I find anything good.
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