The PrecisionFit 31 Ring Set (1-16) of steel rings perfectly fits and accompanies the PrecisionFit steel ring mandrel. PrecisionFit technology is the most accurate ring sizing system in the World, guaranteed to provide a perfect sizing between mandrels and rings.
The PrecisionFit system ensures your 1-16 ring sizing is right every time. No more cross-referencing with inaccurate ring sizers and mandrels. PrecisionFit mandrels and ring gauges are made to International Standard ISO 8653. Machined, hardened, ground & engraved to a perfect finish to ensure 100% accuracy.
