Collet /(?)/

Col·let

Collet

n.
  1. A small collar or neckband.
  2. A small metal ring; a small collar fastened on an arbor; as, the collet on the balance arbor of a watch; a small socket on a stem, for holding a drill. (Mech.)
  3. The part of a ring containing the bezel in which the stone is set. (Jewelry)
    How full the collet with his jewel is!