mandrel

From French mandrin, probably from Late Latin *mamphurinum, from Latin mamphur (“a bow drill”), ultimately from Oscan or Ancient Greek μαννοφόρον (mannophóron, “wearing a collar”), from μανά (maná, “collar”) + φέρω (phérō, “to bear”); first element cognate with Latin monile (“collar”).

• IPA^(key): /ˈmæn.dɹəl/

mandrel (plural mandrels)

1. A round object used as an aid for shaping a material, e.g. shaping or enlarging a ring, or bending or enlarging a pipe without creasing or kinking it.
2. A tool or component of a tool that guides, grips or clamps something, such as a workpiece to be machined, a machining tool or a part while it is moved.
   • 1920, Lester Gray French, Machinery, Volume 26, page 491,

     This socket forms the starting point of the piercing operation, enabling the mandrel to center itself on the work.

   • 1961, Robert Sprenkle, David Ledet, The Art of Oboe Playing, page 46,

     When inserted into the staple, the outside of the mandrel should fit the inside of the staple exactly.

• spindle, arbor

• chuck

• Beekes, Robert S. P. (2010) Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill

• merland