Does anyone know whether what the Americans call NC is what we'd call UNC ? They look the same, and smaller sizes are both called 10-24 or whatever, but I'm a bit of a novice and not wholly confident of my efforts at measurement.
Reason is I've bought a large set of Snap-on taps and dies (reasonably priced, bargain even), but may not have bought what I thought.
Thanks Hywel
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