hot saw

Noun

hot saw (plural hot saws)

1. A saw with a continuously rotating circular blade, used for cutting trees.
   • The 445-E is matched with a Quadco 22-inch hot saw and works a roadside logging system.2002, Logging & Sawmilling Journal, volume 33
   • Finally, she showed me the "hot saw." These are not machines so much as bulky beasts of destruction: souped-up chainsaws with snowmobile or motorcycle engines, some of which run on airplane fuel, that weigh forty to sixty pounds and kick like a rifle when started.2006, Christ Ballard, The Butterfly Hunter: Adventures of People who Found Their True Calling Way Off the Beaten Path, page 84
2. A saw used for cutting hot metal.
   • When double length rails are rolled, the piece is divided in the middle by the hot saw only, and the two fag ends are made the exact length by the cold saw.1882, Journal of the Association of Engineering Societies, volume 1, page 409
   • The ordinary hot saw, for sawing iron at a blight red heat, differs but little from a common circular wood-saw.1888, Park Benjamin, Appletons' Cyclopædia of Applied Mechanics