What is mandrel?

The mandrel is a part of a mold used to form a contour surface in the compact or sintered body in the pressing direction.

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What is mandrel?

Die Grinder Arbor (Mandrel) 1/4 & 3/8

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Mandrel - Wikipedia

A precision-machined tool to accurately hold a pinewood derby wheel in the chuck of a drill. The Pro-Wheel Mandrel includes a beveled thumb screw to

Pro-Wheel Mandrel