{"product_id":"durston-1529-precisionfit-ring-sizing-set-6mm-31-piece-usa-1-16","title":"Durston 1529 Ring Sizing Set 6mm 31-Piece 1-16 USA Sizes","description":"\u003cp\u003eThe \u003cstrong\u003eDurston PrecisionFit™ 1529 Ring Sizing Set\u003c\/strong\u003e delivers professional-grade accuracy for jewelers who demand reliable, consistent ring sizing across the full \u003cstrong\u003eUSA sizes 1–16\u003c\/strong\u003e range. This \u003cstrong\u003e31-piece set of steel rings\u003c\/strong\u003e is engineered to perfectly fit PrecisionFit™ aluminum and steel ring mandrels, eliminating the guesswork and cross-referencing that comes with inaccurate sizers.\u003c\/p\u003e\n\u003cp\u003eManufactured to \u003cstrong\u003eInternational Standard ISO 8653\u003c\/strong\u003e, each ring in the set is machined, hardened, ground, and engraved to a precise finish — ensuring 100% sizing accuracy every time. The PrecisionFit™ system is trusted by individual bench jewelers as well as large multi-location retail chains, making it a versatile and professional standard for any sizing workflow.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e31-piece steel ring sizing set covering USA sizes 1–16\u003c\/li\u003e\n\u003cli\u003eManufactured to International Standard \u003cstrong\u003eISO 8653\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMachined, hardened, ground, and engraved for a perfect finish\u003c\/li\u003e\n\u003cli\u003eDesigned to perfectly fit PrecisionFit™ ring mandrels\u003c\/li\u003e\n\u003cli\u003eEliminates the need to cross-reference with inaccurate sizers or mandrels\u003c\/li\u003e\n\u003cli\u003eTrusted by individual jewelers and large multi-location chains\u003c\/li\u003e\n\u003cli\u003e6mm ring width\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e1529\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePiece Count\u003c\/th\u003e\n\u003ctd\u003e31 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRing Width\u003c\/th\u003e\n\u003ctd\u003e6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003eUSA sizes 1–16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard\u003c\/th\u003e\n\u003ctd\u003eISO 8653\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem Compatibility\u003c\/th\u003e\n\u003ctd\u003ePrecisionFit™ ring mandrels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":46280487207126,"sku":"135.224","price":55.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/135.224_thumb_c4f552e4-c996-47fd-866b-39b3dfbf0950.jpg?v=1730505405","url":"https:\/\/www.ottofrei.com\/products\/durston-1529-precisionfit-ring-sizing-set-6mm-31-piece-usa-1-16","provider":"Otto Frei","version":"1.0","type":"link"}