What is refine in this context? maybe honing?
begin with the coarse diamond to repair any damage in the edge progressed to the fine diamond to refine the edge to do so rest the blade on the guide and push along the abrasive after five to ten passes per side
The basic idea of refine is take something that is good and make it better . Clive
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The basic idea of refine is take something that is good and make it better.
Clive