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It is Allen and not LN as famously confused.

The Allen® name is a registered trademark, originated by the Allen Manufacturing Company of Hartford, Connecticut circa 1910, and currently owned by Apex Tool Group, LLC.

A hex key, hex wrench, Allen key, Allen wrench (also known by various other synonyms such as Inbus and Unbrako) is a tool of hexagonal cross-section used to drive bolts and screws that have a hexagonal socket in the head (internal-wrenching hexagon drive).

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12y ago

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