collet: Meaning and Definition of

col•let

1. a collar or enclosing band.
2. the enclosing rim within which a jewel is set.
3. a slotted cylindrical clamp inserted tightly into the tapered interior of a sleeve or chuck on a lathe to hold a cylindrical piece of work.
4. the tiny collar that supports the inner terminal of a hairspring.

1. to set (a gem or other stone) in a collet.