Durston 1052 Double D4 158mm Stacked Rolling Mill Krohn Each objective lens is independently

Each objective lens is independently focusable

and impact resistance

Convenient pack of 20 for ongoing maintenance needs

properly hardened and expertly machined steel mandrel matched to the Durston Ring Size System and the Durston Ring Finger Gauge

Well-suited for wax working and metal fabrication

Durston 1052 Double D4 158mm Stacked Rolling Mill Krohn Each objective lens is independentlyThe Durston D4 158 mm Stacked Rolling Mill is a precision engineered powerhouse for professional metalsmiths and jewelers who need extra width and power for heavy duty rolling. Going beyond the D2 model, the D4 158 mm adds lower side rolls, a thicker output roll assembly, and a triple stage gear reduction system delivering both power and speed through dual turning levers for effortless rolling of large sheet and wire. Features Wide 158 mm (6 3 16")