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  1. kholmz

    Janka wood hardness vs metal hardness

    I just received a piece of Austrian Buloke in the mail. Said to be the world's hardest wood with a Janka hardness rating of 5060 lbf. My question is, how hard is this compared to metal? The Janka hardness test measures the force required to push a 11.28mm steel ball halfway into a sample of...
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