mandrel

Meaning

Noun

• 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.
• 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.

Related

Similar words

• spindle, arbor

Origin

• From French mandrin, probably from Late Latin *mamphurinum , from Latin mamphur ("a bow drill"), ultimately from Oscan or Ancient Greek μαννοφόρον ("wearing a collar"), from μανά + φέρω; first element cognate with Latin monile ("collar").