{"title":"Durston Ring Size Tools","description":null,"products":[{"product_id":"durston-precisionfit-32-piece-ring-set-uk-sizes-a-z-6","title":"PrecisionFit 32 Piece Ring Set (UK Sizes A-Z +6)","description":"\u003cp\u003e\u003cstrong\u003ePrecisionFit 32 Piece Ring Set (UK Sizes A-Z +6)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system is used by individual jewellers through to large, multiple chains. The PrecisionFit™ 32 Ring Set (A-Z 6) of steel rings perfectly fits and accompanies our PrecisionFit™ aluminium and steel ring mandrels.\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system ensures your A-Z ring sizing is right every time – no more cross-referencing with inaccurate ring sizers and mandrels.\u003c\/p\u003e\n\u003cp\u003ePrecisionFit™ mandrels and ring gauges are made to International Standard ISO 8653.  Machined, hardened, ground \u0026amp; engraved to a perfect finish at our UK factory, to ensure 100% accuracy. Each ring set is put through our rigorous PrecisionFit™ Quality Control System to ensure accurate A-Z sizing. Don’t settle for less than PrecisionFit™.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397867471182,"sku":"DURSTON-1535","price":42.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718977778-25204900.png?v=1775924989"},{"product_id":"durston-round-ring-mandrel-triblet-4-12-5mm","title":"Durston Round Ring Mandrel Triblet 4-12.5mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Round Ring Mandrel Triblet 4-12.5mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOur Round Ring Mandrel, with sizing from 4mm up to 12.5mm.\u003c\/li\u003e\n\u003cli\u003eThis mandrel is manufactured from hardened steel (to 64RC) in our induction hardener.\u003c\/li\u003e\n\u003cli\u003eThe mandrel is left unmarked and is ground and polished to provide years of service in any workshop or factory.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397870715214,"sku":"DURSTON-1509","price":33.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718978119-48689500.png?v=1775925028"},{"product_id":"durston-round-ring-mandrel-triblet-3-10mm","title":"Durston Round Ring Mandrel Triblet 3-10mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Round Ring Mandrel Triblet 3-10mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOur Round Ring Mandrel, with sizing from 3mm – 10mm.\u003c\/li\u003e\n\u003cli\u003eThis mandrel is manufactured from hardened steel (to 64RC) in our induction hardener.\u003c\/li\u003e\n\u003cli\u003eThe mandrel is left unmarked and is ground and polished to provide years of service in any workshop or factory.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397870747982,"sku":"DURSTON-1510","price":34.1,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718978132-95519600.png?v=1775925028"},{"product_id":"durston-square-ring-mandrel-triblet-4-10mm","title":"Durston Square Ring Mandrel Triblet 4-10mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Square Ring Mandrel Triblet 4-10mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOur Square Ring Mandrel, with sizing from 4mm – 10mm.\u003c\/li\u003e\n\u003cli\u003eThis mandrel is manufactured from hardened steel (to 64RC) in our induction hardener.\u003c\/li\u003e\n\u003cli\u003eThe mandrel is left unmarked and is ground and polished to provide years of service in any workshop or factory.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397898436942,"sku":"DURSTON-1511","price":33.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718979877-99722000.png?v=1775925288"},{"product_id":"durston-round-plain-triblet-10-25mm","title":"Durston Round Plain Triblet 10-25mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Round Plain Triblet 10-25mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDurston’s Hardened Ring Mandrels Round (10 to 25mm).\u003c\/p\u003e\n\u003cp\u003eThis Hardened Shaped Ring Mandrel is made from the highest quality materials to produce consistent, outstanding results. This unmarked tapered mandrel, hardened 64 RC, is ground and polished. With ergonomically designed handles, each ring mandrel is created to fit comfortably into your hand, providing support and comfort.\u003c\/p\u003e\n\u003cp\u003eThis round ring mandrel, which can size between 10mm and 25mm, is 365mm long and weighs in at 1kg. Durston’s tools are all created to provide a lifetime of service and reliability, and this is certainly the case with our full range of hardened ring mandrels.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397911019854,"sku":"DURSTON-1502","price":42.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718982171-54130800.png?v=1775925429"},{"product_id":"durston-round-plain-triblet-5-20mm","title":"Durston Round Plain Triblet 5-20mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Round Plain Triblet 5-20mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDurston’s Round Hardened Ring Mandrels (5 to 20mm).\u003c\/p\u003e\n\u003cp\u003eThis Hardened Shaped Ring Mandrel is made from the highest quality materials and produces consistent, outstanding results. The unmarked tapered mandrel, hardened to 64 RC, is ground and polished. With ergonomically designed handles, each ring mandrel is created to fit comfortably into your hand, providing support and security.\u003c\/p\u003e\n\u003cp\u003eThis round ring mandrel, which can size between 5mm and 20mm, is 365mm long and weighs in at 0.6kg. Durston’s tools are all created to provide a lifetime of service and reliability, and this is certainly the case with our full range of hardened ring mandrels.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397918884174,"sku":"DURSTON-1503","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718983371-35754500.png?v=1775925532"},{"product_id":"durston-round-plain-triblet-10-28mm","title":"Durston Round Plain Triblet 10-28mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Round Plain Triblet 10-28mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDurston’s Hardened Ring Mandrel Round (10 to 28mm).\u003c\/p\u003e\n\u003cp\u003eThis Hardened Shaped Ring Mandrel is made from the highest quality materials to produce consistent, outstanding results. This unmarked tapered mandrel is hardened to 64 RC and ground. With ergonomically designed handles, each ring mandrel is created to fit comfortably into your hand, providing support and comfort.\u003c\/p\u003e\n\u003cp\u003eThis round ring mandrel, which can size between 10mm and 28mm, is 410mm long and weighs in at 1.3kg. Durston’s tools are all created to provide a lifetime of service and reliability, and this is certainly the case with our full range of hardened ring mandrels.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397919146318,"sku":"DURSTON-1501","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718984594-40040400.png?v=1775925536"},{"product_id":"durston-square-chamfered-triblet","title":"Durston Square Chamfered Triblet","description":"\u003cp\u003e\u003cstrong\u003eDurston Square Chamfered Triblet\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDurston’s Hardened Ring Mandrel Square Chamfered 6.5-18\u003c\/p\u003e\n\u003cp\u003eThis Hardened Shaped Ring Mandrel is made from the highest quality materials to produce consistent, outstanding results. This unmarked mandrel is hardened to 64 RC and ground. With ergonomically designed handles, each ring mandrel is created to fit comfortably into your hand, providing support and comfort.\u003c\/p\u003e\n\u003cp\u003eDurston’s tools are all created to provide a lifetime of service and reliability, and this is certainly the case with our full range of hardened ring mandrels.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397942018382,"sku":"DURSTON-1506","price":48.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718988030-21658100.png?v=1775925787"},{"product_id":"durston-oblong-chamfered-triblet","title":"Durston Oblong Chamfered Triblet","description":"\u003cp\u003e\u003cstrong\u003eDurston Oblong Chamfered Triblet\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDurston’s Hardened Oblong Chamfered Ring Mandrel 6.5 x 8.5 – 18 x 23\u003c\/p\u003e\n\u003cp\u003eThis Hardened Shaped Ring Mandrel is made from the highest quality materials to produce consistent, outstanding results. This unmarked tapered mandrel is hardened to 64 RC and ground. With ergonomically designed handles, each ring mandrel is created to fit comfortably into your hand, providing support and comfort.\u003c\/p\u003e\n\u003cp\u003eDurston’s tools are all created to provide a lifetime of service and reliability, and this is certainly the case with our full range of hardened ring mandrels.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397942051150,"sku":"DURSTON-1504","price":48.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718988043-91021500.png?v=1775925788"},{"product_id":"durston-ring-stretcher-mandrel-small-14mm-17mm","title":"Durston Ring Stretcher Mandrel, Small 14mm - 17mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Ring Stretcher Mandrel, Small 14mm - 17mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnlarge and resize rings with ease, the new Durston Ring Stretcher Mandrel, compact, easily stored away and ideal for working on the go.\u003c\/p\u003e\n\u003cp\u003eSecure in a vice, clamp, or can be used with a Lathe\/Polisher. Place the ring over the end of the mandrel and tighten the centre bolt with the included allen key. Compact, easily stored away and ideal for working on the go.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmall Diameter: 14mm - 17mm\u003c\/li\u003e\n\u003cli\u003eApprox. length: 92mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397969707342,"sku":"DURSTON-2125","price":62.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719003263-11726600.jpg?v=1775926110"},{"product_id":"durston-ring-stretcher-mandrel-medium-17-5mm-20-5mm","title":"Durston Ring Stretcher Mandrel, Medium 17.5mm - 20.5mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Ring Stretcher Mandrel, Medium 17.5mm - 20.5mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnlarge and resize rings with ease, the new Durston Ring Stretcher Mandrel, compact, easily stored away and ideal for working on the go.\u003c\/p\u003e\n\u003cp\u003eSecure in a vice, clamp, or can be used with a Lathe\/Polisher. Place the ring over the end of the mandrel and tighten the centre bolt with the included allen key. Compact, easily stored away and ideal for working on the go.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMedium Diameter: 17.5mm - 20.5mm\u003c\/li\u003e\n\u003cli\u003eApprox. length: 92mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397969772878,"sku":"DURSTON-2126","price":62.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719003267-31562500.jpg?v=1775926111"},{"product_id":"durston-ring-stretcher-mandrel-large-21mm-24mm","title":"Durston Ring Stretcher Mandrel, Large 21mm - 24mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Ring Stretcher Mandrel, Large 21mm - 24mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnlarge and resize rings with ease, the new Durston Ring Stretcher Mandrel, compact, easily stored away and ideal for working on the go.\u003c\/p\u003e\n\u003cp\u003eSecure in a vice, clamp, or can be used with a Lathe\/Polisher. Place the ring over the end of the mandrel and tighten the centre bolt with the included allen key. Compact, easily stored away and ideal for working on the go.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge Diameter: 21mm - 24mm\u003c\/li\u003e\n\u003cli\u003eApprox. length: 92mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397972590926,"sku":"DURSTON-2127","price":62.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719003271-42848600.jpg?v=1775926114"},{"product_id":"durston-medium-bracelet-mandrel-round-40-70mm","title":"Durston Medium Bracelet Mandrel Round 40-70mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Medium Bracelet Mandrel Round 40-70mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurston Tools’ Bracelet Mandrels are created from tool grade steel which is then hardened to 64 RC and highly polished to reduce your finishing work.\u003c\/li\u003e\n\u003cli\u003eThis is the medium round mandrel enabling the shaping and forming of bangles and bracelets from 40mm diameter to 70mm diameter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397975048526,"sku":"DURSTON-1553","price":59.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719003701-32150000.jpg?v=1775926142"},{"product_id":"durston-precisionfit-aluminium-marked-ring-mandrel","title":"PrecisionFit Aluminium Marked Ring Mandrel","description":"\u003cp\u003e\u003cstrong\u003ePrecisionFit Aluminium Marked Ring Mandrel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system is used by individual jewellers through to large, multiple chains. The PrecisionFit™ Aluminium Marked Ring Mandrel is lightweight for easy handling and use in busy showrooms, weighing in at just 0.9 pounds (0.4KG).\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system ensures your A-Z ring sizing is right every time – no more cross-referencing with inaccurate ring sizers and mandrels.\u003c\/p\u003e\n\u003cp\u003ePrecisionFit™ mandrels and ring gauges are made to International Standard ISO 8653 \u0026amp; crafted from precision-engineered aluminium.  Machined, hardened, ground \u0026amp; engraved to a perfect finish at Durston's UK factory, to ensure 100% accuracy. Each mandrel is put through our rigorous PrecisionFit™ Quality Control System to ensure accurate A-Z sizing.\u003c\/p\u003e\n\u003cp\u003eAll PrecisionFit™ mandrels are created with ergonomically designed handles to provide a firm and comfortable grip. Manufactured from aluminium with a length of 360mm. Don’t settle for less than PrecisionFit™.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397981471054,"sku":"DURSTON-1534","price":55.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719004162-46099300.png?v=1775926224"},{"product_id":"durston-small-bracelet-mandrel-round-25-50mm","title":"Durston Small Bracelet Mandrel Round 25-50mm","description":"\u003cp\u003e\u003cstrong\u003eDurston Small Bracelet Mandrel Round 25-50mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurston Tools’ Bracelet Mandrels are created from tool grade steel which is then hardened to 64 RC and highly polished to reduce your finishing work.\u003c\/li\u003e\n\u003cli\u003eThis is the small round mandrel enabling the shaping and forming of bangles and bracelets from 25mm diameter to 50mm diameter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59397998149966,"sku":"DURSTON-1554","price":55.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719005843-40208000.jpg?v=1782212513"},{"product_id":"durston-aluminium-marked-ring-mandrel-32-ring-set","title":"Aluminium Marked Ring Mandrel \u0026 32 Ring Set","description":"\u003cp\u003e\u003cstrong\u003eAluminium Marked Ring Mandrel \u0026amp; 32 Ring Set\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system is used by individual jewellers through to large, multiple chains. The PrecisionFit™ Aluminium Marked Ring Mandrel is lightweight for easy handling and use in busy showrooms, weighing in at just 0.9 pounds (0.4KG).\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system ensures your A-Z ring sizing is right every time – no more cross-referencing with inaccurate ring sizers and mandrels.\u003c\/p\u003e\n\u003cp\u003ePrecisionFit™ mandrels and ring gauges are made to International Standard ISO 8653 \u0026amp; crafted from precision-engineered aluminium.  Machined, hardened, ground \u0026amp; engraved to a perfect finish at Durston's UK factory, to ensure 100% accuracy. Each mandrel is put through a rigorous PrecisionFit™ Quality Control System to ensure accurate A-Z sizing. All PrecisionFit™ mandrels are created with ergonomically designed handles to provide a firm and comfortable grip. Manufactured from aluminium with a length of 360mm. Don’t settle for less than PrecisionFit™.\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ 32 Ring Set (A-Z 6) of steel rings perfectly accompanies our ring mandrels. They are manufactured from steel with a diameter of 75mm and a weight of 0.1kg and each ring is machined to a perfect size.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59398006505806,"sku":"DURSTON-1537","price":85.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719006502-42706200.png?v=1775926457"},{"product_id":"durston-steel-aluminium-ring-mandrels-32-ring-set","title":"Steel \u0026 Aluminium Ring Mandrels \u0026 32 Ring Set","description":"\u003cp\u003e\u003cstrong\u003eSteel \u0026amp; Aluminium Ring Mandrels \u0026amp; 32 Ring Set\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system is used by individual jewellers through to large, multiple chains. The PrecisionFit™ Aluminium Marked Ring Mandrel is lightweight for secure handling and use in busy showrooms, weighing in at just 0.4KG.  The matching hardened steel mandrel weighs in at 1KG and is ideal for the workshop, providing consistent ring sizing between ‘front of house’ and the bench.\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system ensures your A-Z 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 \u0026amp; crafted from precision-engineered aluminium.  Machined, hardened, ground \u0026amp; engraved to a perfect finish at our UK factory, to ensure 100% accuracy.  Each mandrel is put through our rigorous PrecisionFit™ Quality Control System to ensure accurate A-Z sizing. All PrecisionFit™ mandrels are created with ergonomically designed handles to provide a firm and comfortable grip. Don’t settle for less than PrecisionFit™.\u003c\/p\u003e\n\u003cp\u003eThe accompanying PrecisionFit™ 32 Ring Set (A-Z 6) of steel rings perfectly fits and accompanies the aluminium and steel ring mandrels. They are manufactured from steel with a diameter of 75mm, and a weight of 0.1kg and each ring is machined to a perfect size and review through our PrecisionFit™ Quality Control processes to ensure a perfect fit every time.\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59398053921102,"sku":"DURSTON-1536","price":135.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719008623-14473400.png?v=1775926873"},{"product_id":"durston-showroom-boxed-ring-sizing-set-uk-half-sizes-d-z-6","title":"Showroom Boxed Ring Sizing Set (UK Half Sizes D-Z +6)","description":"\u003cp\u003e\u003cstrong\u003eShowroom Boxed Ring Sizing Set (UK Half Sizes D-Z +6)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system is used by individual jewellers through to large, multiple chains. The PrecisionFit™ Aluminium Marked Ring Mandrel is lightweight for easy handling and use in busy showrooms, weighing in at just 0.9 pounds (0.4KG).\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ system ensures your D-Z ring sizing is right every time – no more cross-referencing with inaccurate ring sizers and mandrels.\u003c\/p\u003e\n\u003cp\u003ePrecisionFit™ mandrels and ring gauges are made to International Standard ISO 8653 \u0026amp; crafted from precision-engineered aluminium.  Machined, hardened, ground \u0026amp; engraved to a perfect finish at Durston's UK factory, to ensure 100% accuracy. Each mandrel is put through a rigorous PrecisionFit™ Quality Control System to ensure accurate D-Z sizing. All PrecisionFit™ mandrels are created with ergonomically designed handles to provide a firm and comfortable grip. Manufactured from aluminium with a length of 360mm. Don’t settle for less than PrecisionFit™.\u003c\/p\u003e\n\u003cp\u003eThe PrecisionFit™ 32 Ring Set (D-Z 6) of steel rings perfectly accompanies our ring mandrels. 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UK delivery only.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note this item is excluded from any discount codes, offers or promotions.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59398081904974,"sku":"DURSTON-1301","price":415.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719014702-53586800.png?v=1775927178"},{"product_id":"durston-ring-stretcher-reducer-bender","title":"Durston Ring Stretcher, Reducer \u0026 Bender","description":"\u003cp\u003e\u003cstrong\u003eDurston Ring Stretcher, Reducer \u0026amp; Bender\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDurston’s design expertise brings you a high precision ring stretcher\/reducer to ensure exceptionally accurate ring sizing. The heavy-duty cast iron construction gives you real durability and strength.\u003c\/p\u003e\n\u003cp\u003eFeatures include a six spline mandrel with 16 polished countersunk dies enabling you to reduce bands up to 12mm wide, while specially designed gear reduction ensures effortless forming.\u003c\/p\u003e\n\u003cp\u003eThis model adds real versatility with a side bender which includes a precision hardened and ground bending die. 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Please contact us before purchase for more information. UK delivery only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note this item is excluded from any discount codes, offers or promotions.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59398085378382,"sku":"DURSTON-1319","price":730.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1756807544-77970300.jpg?v=1775927218"},{"product_id":"durston-precisionfit-plastic-ring-mandrel","title":"Durston PrecisionFit Plastic Ring Mandrel","description":"\u003cp\u003e\u003cstrong\u003eDurston PrecisionFit Plastic Ring Mandrel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurston Tools’ PrecisionFit™ Marked Plastic Ring Mandrel offers UK sizing from A-Z +6\u003c\/li\u003e\n\u003cli\u003eMade from durable plastic\u003c\/li\u003e\n\u003cli\u003eEnsures exceptional value while maintaining the high standard of precision you expect from Durston Tools.\u003c\/li\u003e\n\u003cli\u003ePrecisionFit™ technology guarantees the most accurate ring sizing system in the world, ensuring a perfect fit between mandrels and rings\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":59398683885902,"sku":"DURSTON-1513","price":15.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1746008875-08436600.png?v=1775930995"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/collections\/category_image_durston_ring_size_tools.jpg?v=1781613552","url":"https:\/\/maddisonsofdurham.co.uk\/collections\/durston-jewellers-tools-ring-size-tools.oembed","provider":"Maddisons of Durham","version":"1.0","type":"link"}