Generally refers to the edge. If diff treated, release specs will indicate as much.
So the edge is 60 RC and the rest is 58 RC.
But do you know how wide is the 60RC portion from the edge? How deep from the edge starts the 58RC?
And what happens during the use after I "eat" more from the edge by resharpening? Shall I have only some lose in edge retention when the edge will be at half of the actual blade width?
