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Re: Dull Razors

At the edge of a very sharp blade steel is much thinner than
hair and that is why, I suppose, metallic pieces are removed,
little by little. It is not the hardness alone that counts.

Jim Green wrote:

All the nonsense aside, a steel blade (even stainless steel) is much
harder and tougher than any body hair (even women's under arm
hair), so how is it that cutting hair can dull the blade?