Metalworking. a machine for boring large holes in heavy work, having a table on which the work rotates while the hole is bored vertically.
Origin
1825-35
Examples from the web for boring mill
Machining equipment includes lathes, a horizontal boring mill, and saws.
The company offers overhead crane capabilities, grip elevators, boring mill facilities and radial drill capabilities.
British Dictionary definitions for boring mill
boring mill
noun
1.
(engineering) a large vertical lathe having a rotating table on which work is secured. Tools are held on a fixed post and the work is rotated around it Also called (informal) roundabout