I want the answer in inches. The width, in inches where the two sides come together to form the cutting edge.
I have found some of the answer. Some razor blades measure .4 Microns at the apex where the two bevels come together. Now, I am trying to find out the size of 1 Micron in inches.
I understand what you are talking about. I have used the same methods to test for sharpness.
I am asking the technical questions because I am curious to know this measurement. For example how sharp is sharp?
I have read that obsidian is 100 times sharper that it is possible to get the sharpest steel blade. Makes me wonder how thick the obsidian is at it's cutting edge.
