ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  drill bit - a bit used in drilling for oil bit - the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press; "he looked around for the right size bit" core bit - a hollow drilling bit that is the cutting part of a core drill; allows core samples to be taken blade bit, fishtail bit - a drilling bit with cutting edges usually hardened against wear rock bit, roller bit - a drill bit that has hardened rotating rollers |
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