Bergeon Ring Stick, DELRIN Black, Does not Scratch Four measurements, Swiss Made

Description

• Ring stick
• “DELRIN” black. Does not scratch.
• Indeformable.
• High precision.
• Total length: 250 mm/ 9.84 inches
• Four Measurements: U.S.; French; Diameter; Circumference

A Swiss made Ring Mandrel by Bergeon. This 250mm/9.84 inch long Mandrel is made of Delrin, and has for different measurements:

U.S. (American Calibration) 1-15

Diameter in mm (millimeters) 13.0-24.2

No/French Calibration 1-36

U/Circumference in mm/millimeters 41.76