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Two comments, and one suggestion:

1. The width of the bevel (if it's flat, which it should be) depends on:

. . . the geometry of the blade -- thickness / width ratio, which determines the
. ....

Welcome to "Devil's Spit" !!!!! A small spot of corrosion at the surface of the blade may cause havoc deep inside the metal. It's the way rust behaves in high-carbon steel.

You understand the...