大お鋸が

noun

large saw; framed pit saw

Refers to a large saw, especially a traditional two-person pit saw used for ripping logs into boards.

• 昔むかしの大だい工くは大お鋸がで丸まる太たを板いたに挽ひいた。

  Carpenters in the old days ripped logs into boards with a large pit saw.