ice saw

noun, a large saw specially constructed (often with a long blade and long thin handle) for cutting through ice (“ice, n.” OED)

“Dad and Uncle Tom and all of them, they got on that old ice saw, and they cut that old Duke [ship] out to open water to set the nets, and by geez if the wind didn’t shift, and the ice come back in again, and they had to cut her all the way back in again.”

“He said, ‘How would you get the ice saw started through the ice? Or do you have to chop a hole first?'”