Why the 40° edge will not score as well as the 20°

[grepper]

Thanks for the post Mr. KG.  While I find the keen/sharp way of describing things puzzling, the point of why test results with different bevel angles differ is interesting.  Does bevel angle dictate apex sharpness or with these extremely sharp edges are we seeing how bevel angle effects test media cleaving.

Maybe you have it exactly right when you said, "Of all 3, only the BESS Edge Sharpness Tester tests both the keenness and sharpness".

I hate the terminology, but I understand what you are saying.