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

Examples of Allen wrench in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Her travel kit typically includes duct tape, Allen wrenches and other small tools for minor fixes. Zach Wichter, USA TODAY, 25 Nov. 2024 As long as the bolts are steel (most are), these magnetic inserts drop right in and prevent an Allen wrench from fitting into the bolt head. Matt Jancer, WIRED, 28 Nov. 2023

Word History

Etymology

Allen Manufacturing Company, Hartford, Connecticut

First Known Use

1913, in the meaning defined above

Time Traveler
The first known use of Allen wrench was in 1913

Dictionary Entries Near Allen wrench

Cite this Entry

“Allen wrench.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Allen%20wrench. Accessed 25 Jan. 2025.

Kids Definition

Allen wrench

noun
: an L-shaped hexagonal metal bar used to turn a screw or bolt
Last Updated: - Updated example sentences
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