hammer drill
noun
a rock drill operated by compressed air in which the boring bit is not attached to the reciprocating piston
an electric hand drill providing hammering in addition to rotating action
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Nearby words
hammer and sickle, hammer and tongs, hammer away at, hammer beam, hammer blow, hammer drill, hammer finger, hammer mill, hammer out, hammer pond, hammer price
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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