mandrel suomeksi - Sanakirja.org (englanti-suomi)

An object used as an aid for shaping a material, e.g. bending or enlarging a pipe without creasing or kinking it.
A tool or component of a tool that grips or clamps something, such as a workpiece to be machined, a machining tool or a part while it is moved.

This socket forms the starting point of the piercing operation, enabling the mandrel to center itself on the work.
When inserted into the staple, the outside of the mandrel should fit the inside of the staple exactly.

Monikko