Durston PrecisionFit Steel Ring Mandrel Graduated in USA sizes 1 To 16 by 1/4 Size-No Groove

A graduated ring mandrel is how a ring gets checked, trued, and stretched against one repeatable scale at the bench. The Durston PrecisionFit Steel Ring Mandrel is a super premium, properly hardened and expertly machined steel mandrel matched to the Durston Ring Size System and the Durston Ring Finger Gauge, so sizing stays consistent from the front counter to the back shop whether you measure with a Durston finger gauge or another brand. With over 20,000 units in use at some of the largest jewelry operations in the United States, it is the mandrel of choice for professional jewelers who demand precision and consistency.

Graduated in US sizes 1 through 16 by quarter-size increments, this no-groove mandrel gives clear, accurate sizing markings across the full range. It is made in the United Kingdom to exacting tolerances and replaces part number 143.076.

Features

• Matched to the Durston Ring Size System and Durston Ring Finger Gauge for consistent, precise sizing
• Properly hardened and expertly machined steel construction
• Graduated in US sizes 1–16 in 1/4-size increments
• No-groove design for a clean, unobstructed working surface
• Trusted by some of the largest jewelry operations in the United States, with over 20,000 units in use
• Made in the United Kingdom
• Replaces part number 143.076

Compatibility

Matched to the Durston Ring Size System and the Durston Ring Finger Gauge, and usable whether you take the finger size with a Durston gauge or a gauge from another brand.