what would you call the thing the arrows are pointing at? don't say axe I will cut youpic.twitter.com/thnM5bqUYy
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They are often called that but the actual purpose is to make the blade lighter without losing cutting ability. Source: I have a black belt in kenjutsu and own 2 katana and 2 wakizashi. My primary sword has no grooves because I would rather my sword make me get stronger
I don't know what they're called on an axe though
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