Allen wrench
noun
Al·len wrench
| \ ˈa-lən-
\
\
Definition of Allen wrench
: an L-shaped hexagonal metal bar either end of which fits the socket of a screw or bolt
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More Definitions for Allen wrench
Allen wrench
noun
English Language Learners Definition of Allen wrench
US
: a small tool that is used to turn a special type of screw
See the full definition for Allen wrench in the English Language Learners Dictionary