| 单词 | hex key wrench |
| 释义 | hex key wrench in British English (hɛks kiː rɛntʃ) noun another name for Allen key Allen key in British English or Allen wrench noun an L-shaped tool consisting of a rod having a hexagonal cross section, used to turn a screw (Allen screw) with a hexagonal recess in the head. A different size of key is required for each size of screw |
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