Although there is still a myth that they were of bad quality, these were just bad quality swords that dishonest dealers sold, so this is not an appropriate evaluation (there were bad quality swords in the early and later period).
粗悪品だったという俗説も未だ根強いが、これらはあくまで悪徳業者の販売した粗悪刀等で、一部を除き（初期や末期には粗悪品が見られる）妥当な評価ではない。