Made in England by Durston, with six splines on its polished steel mandrel, this high-quality ring stretcher ensures exceptionally accurate ring sizing. This sizer will size non-ferrous precious and non-precious metal rings and bands up to size 14 (U.S.). Its countersunk, polished steel, reducing plate will reduce bands up to 12mm wide.
The body is cast iron, powder-coated for long service life, and is drilled with four countersunk holes (7.5mm dia.) for mounting securely to your work surface (hardware is not included).
This sizer is not appropriate for sizing rings or bands made of hard metals such as steel and titanium.