This old catalog has large crosscut saws (sold by the foot!). They all have a rounded “belly” on the business side and I’m wondering why.

My best guess, without just googling it, is that it widens the last strip of wood thus reducing snap offs.

  • jnj@lemmy.ca
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    1 year ago

    Most friction will be from the sides of the blade rubbing against the kerf. I believe it’s just about concentrating force onto those teeth (which are essentially knives on crosscut saws, alongside chip clearing teeth).