Rectangle Forming Mandrel (12 to 24mm)

This hardened steel mandrel feels solid and well-balanced in hand; the precision-ground edges make wire wrapping a smooth process. I used it to form a 14mm rectangle for a bezel setting, and the result was perfectly clean. Exactly the heavy-duty tool I needed for larger projects.

The clean edges are exactly what I needed for bezel work—no snagging or catching on the wire. At this size range it’s a solid, heavy piece that stays put on my bench, and the precision ground finish shows in every bend.

It's a solid, heavy piece of steel that gives you clean results on wire wraps. I just wish the size markings were etched a little deeper for easier reading in bright workshop light.