A revolving disc edged saw-wise.
1821. The circular saw is a recent invention. The Shakers, at their village in Watervliet, near Albany, have this in very excellent use and great perfection. [Also] a circular buz, of thin, soft sheet iron, six inches in diameter, which cuts the hardest steel almost with the same ease that it could cut tallow…. I saw it in operation in July 1817…. An ingenious young Shaker, Freegift Wells, constructed the machine which I saw.—Mass. Spy, Sept. 26: from the Ballston Farmer.
1852. As easily as a circular-saw cuts a plank.—C. W. Hoskyns, ‘Talpa,’ p. 178. (N.E.D.)
