内六角板手 Hex key
（重定向自Socket head）
内六角扳手，用来驱动具有内部六角头部的螺栓和螺钉的工具。常见的英文名称有“Allen key（或Allen wrench）”和“Hex key”（或Hex wrench）。
Socket head
中文百科
英语百科
Hex key 内六角板手
（重定向自Socket head）
A hex key, Allen key, or Allen wrench 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).
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. Its genericized use is discouraged by this company. The standard generic name used in catalogs and published books and journals is "hex key".
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