123 block-lapping

i was looking at buying a set of 123 blocks and came across a spec. which i don't understand "up to .0003 over allowance for nominal lapping"

could someone explain? thanks!


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They give you up to 3 tenths extra meat for when you lap them on a belt sander.

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Tom Gardner

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On Tue, 27 Apr 2004 18:59:53 GMT, "Tom Gardner" brought forth from the murky depths:

Yeah, break out the old 80 grit belts and...

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Larry Jaques

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