Durston 1051 Double D2 130mm Rolling Mill Tumblers & Media 14K white gold uses nickel-based

14K white gold uses nickel-based alloy with rhodium plating

Switzerland by the sole Swiss file manufacturer

020") Approx

5 mm 360-53

Platinum is an alloy of 95% platinum and 5% ruthenium

Durston 1051 Double D2 130mm Rolling Mill Tumblers & Media 14K white gold uses nickel-basedThe Durston Double D2 130mm Rolling Mill is a compact, production ready combination mill built for professional shops and schools that require both flat sheet rolling and wire rolling in a single machine. Upper flat rolls and lower square wire rolls run on maintenance free, lifetime guaranteed bearings, while large hand wheel adjusters, a groove indicator on the wire rolls, and a calibrated roll gap dial in both millimeters and inches (down to 0. 001"