Dictionary - Definition of AIR DRILL


Part of Speech	Definition
Expression	1. A drill driven by the elastic pressure of condensed air; a pneumatic drill.[Websters].
Source: Webster's Revised Unabridged Dictionary (1913)		Top

Common Expressions: AIR DRILL

Expressions	Definition
Air drill	A drill driven by the elastic pressure of condensed air; a pneumatic drill. Source: Webster's Revised Unabridged Dictionary.
Source: compiled by the editor from various references; see credits.		Top

Expressions	Domain	Definition
Air drill	Mechanical Engineering	A drill which uses compressed air for reciprocating action and to remove the cuttings from the hole; hence "dry drilling", etc. Source: European Union. (references)
Air drill	Mining	A. A small diamond drill driven by either a rotary or a reciprocating-piston air-powered motor; used principally in underground workings b. As used by miners, a percussive or rotary-type rock drill driven by compressed air. Cf: air rig. (references)
Electric air drill	Mining	A type of tripod drill operated by compressed air supplied by a portable motor-driven compressor that accompanies the drill. (references)
Source: compiled by the editor from various references; see credits.			Top