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Old October 27, 2011, 09:42 AM   #16
Senior Member
Join Date: December 29, 2004
Posts: 3,342
I don't want to go off topic or sound like a winchester salesman, but with today's quality of machining possible, hand lapping sounds so last century
Cutting tools leave marks behind, always have and always will.

Lapping smooths the tooling marks left.
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