pneumatic drill
McGraw-Hill Science & Technology Dictionary:
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pneumatic drill
(nu̇′mad·ik ′dril)
(mechanical engineering) Compressed-air drill worked by reciprocating piston, hammer action, or turbo drive.
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pneumatic drill
McGraw-Hill Dictionary of Architecture & Construction:
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pneumatic drill
A drill powered by compressed air from an auxiliary external source.
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McGraw-Hill Science & Technology Dictionary
McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.
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