Injector Blades

Let's talk about single and double edged razors and the blades that they use.
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Joe Lerch
Posts: 2062
Joined: Sun May 01, 2005 1:20 am
Location: New Jersey

Post by Joe Lerch »

It's not the weight of the hair. It's the pressure of the razor against the resisting hair. Cut it about 1/4 inch from where you're holding it.

This test has never worked for me because I have fine hair. Tryit if you have thick hair or use a boar hair.
Pauldog wrote:
Joe Lerch wrote:A standard test for str8 razor sharpness is to hold a hair and bring the razor edge into contact with it. A keen razor easily cuts the hair with only the resistance offered by the hair. A fresh DE blade is at least equally sharp.

So the weight of the hair resting on the blade is enough to cut it? If that's what you meant, it's very simple and elegant. I'll have to pull a hair and try it on a fresh blade...
Joe
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