Durston 1525US PrecisionFit Steel Marked Ring Mandrel With Groove USA Sizes 1-16

The Durston PrecisionFit™ Steel Marked Ring Mandrel with groove is hardened to 64RC to ensure a solid base for your work, weighing in at 2.2 lbs. The PrecisionFit™ system ensures your 1-16 USA 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 and engraved to a perfect finish to ensure 100% accuracy. All PrecisionFit™ mandrels are created with ergonomically designed handles to provide a firm and comfortable grip. Manufactured from steel with a length of 360mm (14-1/4").