Durston 2125 Small Ring Stretcher Mandrel Gemological Instruments VS1 clarity — Very Slightly

VS1 clarity — Very Slightly Included

With ten distinct brush styles represented and six of each brush included

and burns out with low ash for reliable investment casting results

0mm 201-131PO 14K White

Consistent shape supports even compound application and uniform polishing results

Durston 2125 Small Ring Stretcher Mandrel Gemological Instruments VS1 clarity — Very SlightlyThis small expanding ring stretcher mandrel is designed to enlarge and size rings in the 1417 mm range, in a compact format that tucks easily into a drawer or travel kit. Once clamped, the mandrel expands smoothly as you tighten the center bolt, nudging the shank out to size in small, controlled steps. Features Compact expanding mandrel sized specifically for smaller ring diameters. Stores easily in a drawer, toolbox, or roll, ideal for mobile or