So I keep reading about a "fin" at the edge of a straight razor. I kinda think it's BS. If there was a fin at the edge of the straight razor, then it would be so thin that it would fold over super easy as soon as it came into contact with anything harder than wet toilet paper (which we all know, is actually the absolute worst thing in the world when you get surprised by accidentally wet toilet paper...)

In all of the micrographs that I've seen, there has been no sign if a fin. I tend to feel that a proper straight razor edge is the perfect meeting of two planes with an angle of 15 to 17 degrees between the two.

More like a " V " than a " Y "

The fin seems to be a product of overhoning more than anything.


I'm in the "Fins are BS" camp. Where do you stand?