Allen wrench

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

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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The first known use of Allen wrench was in 1913

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Allen wrench


English Language Learners Definition of Allen wrench

: a small tool that is used to turn a special type of screw

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to clear from alleged fault or guilt

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