Drill

DEFINITION

In the printing arena, to drill a whole in a printed matter.<br><br>A tool that bores a hole when revolved. In the most primitive examples it is revolved between the palms; then it was operated by means of a bow, and later also with a brace. The cutting is generally achieved by a metal point or bit, but in some cases the point of the drill is used with abrasives. There are many types of contemporary drills, including those that bore holes by both rotating abrasion and repeated blows. A drill press is a powered vertical drilling machine in which the point is pressed to the work by hand lever or automatically.Also see twist drill and wood.

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