mandrin means “chuck” | MotiTan French Dictionary

More examples

Avant de percer, vérifie le mandrin de la perceuse.

Before drilling, check the drill chuck.

A spindle-mounted clamp that keeps a cutting tool centered while it turns.

Désigne la pièce ou le mécanisme d'une machine-outil qui maintient et coince une mèche ou un outil afin de transmettre la rotation.

French mandrin comes from Italian mandrino, whose technical use also denotes a device that holds a tool during rotation.

English mandrel often means a shaft or form around which material is shaped, so it is not always equivalent to French mandrin.