Triboulet en acier Durston 1525US PrecisionFit, gradué et rainuré, tailles américaines 1 à 16

The Durston PrecisionFit™ Steel Marked Ring Mandrel with Groove delivers professional-grade accuracy for USA ring sizing 1–16. Hardened to 64RC, this mandrel provides a solid, stable base for sizing, forming, and shaping work. The PrecisionFit™ system eliminates the need to cross-reference inaccurate ring sizers and mandrels, giving you confidence that your sizing is correct every time.

All PrecisionFit™ mandrels and ring gauges are manufactured to International Standard ISO 8653, then machined, hardened, ground, and engraved to a perfect finish for 100% accuracy. The ergonomically designed handle provides a firm, comfortable grip during extended use. At 2.2 lbs and 360mm (14-1/4") in length, this mandrel is built for the demands of a professional bench.

Features

• Hardened to 64RC for a solid, durable work surface
• PrecisionFit™ system ensures accurate USA ring sizing 1–16 every time
• Manufactured to International Standard ISO 8653
• Machined, hardened, ground, and engraved to a perfect finish
• 100% accuracy — no need to cross-reference with secondary sizers
• Groove design for added versatility at the bench
• Ergonomically designed handle for a firm, comfortable grip

Specifications