Hand Tools

toughness not necessary?

Bill Tindall, E.Tn.
allowed me to learn that toughness isn't really a necessary attribute in woodworking tools You need to elaborate here because the statement as it stands is not true. If true, glass would make a superior plane blade. You regularly fault blades for chipping. The only reason to temper is to improve toughness. So what do you mean?

Maybe it is definition. In my mind toughness is the ability to bend without breaking. It is a whole lot easier to fix a deflected chisel edge than one that yields to stress by a piece of chisel edge breaking away.

I threw you off with the CMP 3V statement. It was an analogy not a recommendation.

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