Hello All, perhaps a strange thread on a sharpening and sharpness forum, but it seems I may need an arguable measurable definition of 'blunt'.

In the BESS scale, it is defined up to 2000 where there is an unsharpened DE blank quoted (assuming this is an unsharpened razor blade blank), also compared to a butter knife.

Can I safely say that an edge measured at 2000 BESS or above is 'blunt'?

If the answer is yes, does this have an equivalent, directly measurable, edge apex width?

Has anyone else needed to define when an edge is officially blunt?

Addition:

Might there be a cutting test that a 'blunt' blade will demonstratably fail as a proof?

In the BESS scale, it is defined up to 2000 where there is an unsharpened DE blank quoted (assuming this is an unsharpened razor blade blank), also compared to a butter knife.

Can I safely say that an edge measured at 2000 BESS or above is 'blunt'?

If the answer is yes, does this have an equivalent, directly measurable, edge apex width?

Has anyone else needed to define when an edge is officially blunt?

Addition:

Might there be a cutting test that a 'blunt' blade will demonstratably fail as a proof?

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