boring mill

American  

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.

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boring mill British  

noun

1. Also called (informal): roundabout. 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

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Etymology

Origin of boring mill

First recorded in 1825–35

Example Sentences

See Examples For:

boring mill

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 ● Jul. 27, 2019

This is especially true of the heavy parts for which the boring mill is principally used.

From Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. by Franklin D. Jones

Turning the Rim of a Flywheel Turning a Flywheel on a Vertical Mill.—The turning of a flywheel is a good example of the kind of work for which a vertical boring mill is adapted.

From Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. by Franklin D. Jones

Set of Boring Mill Tools Turning Tools for the Vertical Boring Mill.—A set of turning tools for the vertical boring mill is shown in Fig.

From Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. by Franklin D. Jones

The construction and operation of this machine is very different from that of a vertical boring mill and it is also used for an entirely different class of work.

From Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. by Franklin D. Jones