Durston 2125 Small Ring Stretcher Mandrel Polishing Compound Measurements given for file dimensions

Measurements given for file dimensions are taken at the thickest point of the file

Net Weight 15 g Packaging Glass jar Typical Firing Temperature 1200°F (650°C) for 30 minutes Firing Methods Electric kiln

cutting hours of expensive hand labor from the process and reaching the undersides of rings

All burs are genuine Busch tungsten vanadium steel

Both lenses are coated achromatic optics

Durston 2125 Small Ring Stretcher Mandrel Polishing Compound Measurements given for file dimensionsThis 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