{"product_id":"precisionfit-ring-sizing-set-1-16-usa","title":"Durston 15242628US PrecisionFit Ring Sizing Set - Steel \u0026 Aluminum Ring Mandrels \u0026 31 Ring Set 1-16 USA","description":"\u003cp\u003eThis complete ring sizing system pairs lightweight front-of-house mandrels with a heavier workshop mandrel and matching ring gauges, so every size from 1–16 reads the same at the counter and at the bench. The mandrels feel solid and precise in the hand, with crisp engraved markings that are easy to read under normal shop lighting.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated ring sizing system designed to keep showroom and workshop sizing perfectly aligned from size 1 through 16.\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum marked ring mandrel (approx. 0.88 lb \/ 0.4 kg) optimized for secure handling in busy showrooms.\u003c\/li\u003e\n\u003cli\u003eMatching hardened steel marked ring mandrel (approx. 2.2 lb \/ 1 kg) ideal for bench use and ring work at the anvil.\u003c\/li\u003e\n\u003cli\u003ePrecisionFit 31-ring gauge set provides a full run of USA sizes 1–16 that matches the markings on both mandrels.\u003c\/li\u003e\n\u003cli\u003eAll sizing components are manufactured to International Standard ISO 8653 for consistent, interchangeable sizing.\u003c\/li\u003e\n\u003cli\u003eMandrels are machined, hardened, ground, and engraved for a clean finish and reliable, repeatable readings.\u003c\/li\u003e\n\u003cli\u003eErgonomically designed handles give a firm, comfortable grip during frequent sizing checks.\u003c\/li\u003e\n\u003cli\u003eEach piece passes through a dedicated PrecisionFit quality control process to confirm accurate 1–16 sizing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Size Range\u003c\/td\u003e\n\u003ctd\u003eUSA sizes 1–16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Components\u003c\/td\u003e\n\u003ctd\u003eAluminum marked ring mandrel, steel marked ring mandrel, 31-ring gauge set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminum Mandrel Weight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.88 lb (0.4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteel Mandrel Weight\u003c\/td\u003e\n\u003ctd\u003eApprox. 2.2 lb (1 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Gauge Set\u003c\/td\u003e\n\u003ctd\u003e31 steel rings, sizes 1–16 USA, approx. 75 mm (2.95\") diameter, approx. 0.1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturing Standard\u003c\/td\u003e\n\u003ctd\u003eMade to International Standard ISO 8653\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003ePrecision-engineered aluminum mandrels; steel mandrel and steel ring gauges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHandle Design\u003c\/td\u003e\n\u003ctd\u003eErgonomically shaped handles for secure, comfortable grip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufactured In\u003c\/td\u003e\n\u003ctd\u003eUnited Kingdom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eDurston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrecisionFit Aluminum Marked Ring Mandrel\u003c\/td\u003e\n\u003ctd\u003eLightweight aluminum mandrel for showroom use, marked USA sizes 1–16\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrecisionFit Steel Marked Ring Mandrel\u003c\/td\u003e\n\u003ctd\u003eHardened steel mandrel for workshop use, marked USA sizes 1–16\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrecisionFit Ring Gauge Set\u003c\/td\u003e\n\u003ctd\u003e31-piece steel ring set, USA sizes 1–16, matched to the mandrels\u003c\/td\u003e\n\u003ctd\u003e1 set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe PrecisionFit system is designed to eliminate the need for cross-referencing between mismatched ring sizers and mandrels. Use the aluminum mandrel and 31-ring set at the counter, and the steel mandrel at the bench, knowing all three components are calibrated to the same ISO 8653 standard.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":46031827861718,"sku":"135.228","price":132.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/durston-15242628us-precisionfit-ring-sizing-set-steel-and-aluminum-ring-mandrels-and-31-ring-set-1-16-usa-otto-frei-1.jpg?v=1726697817","url":"https:\/\/www.ottofrei.com\/es\/products\/precisionfit-ring-sizing-set-1-16-usa","provider":"Otto Frei","version":"1.0","type":"link"}