This is called an " Allen key" or " hex key" .
这称为“内六角扳手”或“六角扳手”。
Hex key
原声例句
Engvid超级外教Ronnie-词汇
Engvid超级外教Ronnie-词汇
And an Allen key or a hex key are really good if you have a bicycle or if you have to undo something or take something apart.
如果您有一辆自行车，或者您必须撤消或拆开某物，那么内六角扳手或六角扳手就非常有用。
中文百科
内六角板手
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）。
许多制造商已经采用内六角螺钉组装自行车及易拆装的家具，进一步扩大了内六角扳手的适用范围。
英语百科
Hex key 内六角板手
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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