boring mill

noun

1. Metalworking. a machine for boring large holes in heavy work, having a table on which the work rotates while the hole is bored vertically.

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

Word History and Origins

Origin of boring mill¹

First recorded in 1825–35

Example Sentences

His father, John, a Navy veteran of World War I, worked as a boring mill operator at an aircraft company, according to government records.

From Washington Post

The Hot Springs Sentinel-Record reported that capital improvements include a new boring mill that will increase the plant’s capacity and allow it to create more high-skilled manufacturing jobs.

From Seattle Times

Look for her today, three years later, and you’ll find her on the sunrise shift running a vertical boring mill alongside crews that are mostly male and twice her age.

From Washington Post

Manufacturer: "Can he run a boring mill?"

From Time Magazine Archive

Very often more than one tool is used at a time, as will be shown later by examples of vertical boring mill work.

From Project Gutenberg