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collet noun

  /ˈkɑlɪt/ , /ˈkɒlɪt/
  • A band, flange, ferrule, or collar, designed to grip and hold a tool or a workpiece under proper control, and usually to release it under control thereafter; such a collet usually is made of a hard, springy material, especially a metal.
 цанга
  • (jewelry) The rim (of a ring) within which a jewel is set.
 гнездо
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