Ending for threads, lenght 6,75mm , width 3,09mm , width with circle...
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Designed to take the size of a ring from customers.Made of aluminium. With four scales in milled recess:European number 1-36, American number 1-15, internal diameter of the ring and ring circumference.
A set of metal rings to take the size of a ring for customers, 36 rings made of strong chromium-plated steel.Scaled as standard measuring stick.
29 wide strong rings made of chrome-plated steel.Scale as for measuring stick.Width approx: 6mm.