Definition of chuck key in English:

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chuck key

noun

A small metal device for tightening the chuck of a drill.
Example sentences
  • Originally, reciprocating saws were provided with a separate chuck key to release the saw blade.
  • I'm always misplacing the chuck key to my drill press.
  • Step 3: Unscrew the drill chuck by holding down the drill on a sturdy workbench and inserting the chuck key.
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