Durston Tools’ PrecisionFit™ Marked Plastic Ring Mandrel provides USA sizing from 1-16. Constructed from high-quality plastic, this mandrel offers exceptional value while upholding the precision you expect from Durston Tools. Our PrecisionFit™ technology guarantees the most accurate ring sizing system in the world, ensuring a perfect fit between mandrels and rings. Join the many satisfied users of PrecisionFit™ mandrels, with over 20,000 sold annually in the USA!
