Allen wrench

noun
Al·​len wrench | \ ˈa-lən- How to pronounce Allen wrench (audio) \

Definition of Allen wrench

: an L-shaped hexagonal metal bar either end of which fits the socket of a screw or bolt

First Known Use of Allen wrench

1913, in the meaning defined above

History and Etymology for Allen wrench

Allen Manufacturing Company, Hartford, Connecticut

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Time Traveler for Allen wrench

The first known use of Allen wrench was in 1913

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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

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