12-12-2012, 10:19 AM
I have noticed that some DE blades apparently have the edges numbered, 1 and 2 on one side and 3 and 4 on the other. The only reason I can think why these numbers would be there is that, at some point, someone thought that it was a good idea to know which edge they were using, and then turn the blade over. Any thoughts on why the numbers are there, and also if turning the blade over might result in a better shave or longer blade life?
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