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I don't reckon that is over 6/8 personally, maybe 13/16 tops. I did a quick measure on my phone so probably not 100% but close. Still very cheap though.

I think that shows how important a proper listing is, the title was ???? And butcher. It is also not that wide a blade which makes it less desirable to some.

You wouldn't be the first to make w and b inspired razors, I think you would need to be making quite a few to recoup the costs of learning to make them though.