{"product_id":"sterling-silver-seamless-round-tubing-12in-lengths-1-62-5-86mm","title":"Sterling Silver Round Tubing - Sold in 12\" Lengths","description":"\u003cp\u003eCut hinge knuckles, tube settings, and structural components from stock that runs straight and seamless. This is sterling silver seamless hollow round tubing, an alloy of .925 silver and .075 copper from Harmony, supplied in 12\" (304.8 mm) lengths with outside diameters from 1.62–5.86 mm (0.064\"–0.231\") and made in the USA. Smooth, continuous walls give a clean, bright edge around stones and along hinge knuckles.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeamless hollow round tubing for precise hinge knuckles, tube settings, and other fabricated components.\u003c\/li\u003e\n\u003cli\u003eSupplied as straight 12\" lengths, ready to cut into custom sections at the bench.\u003c\/li\u003e\n\u003cli\u003eInterior and exterior diameters coordinated to common wire gauges for use as hinge pins and rivets.\u003c\/li\u003e\n\u003cli\u003eWall thickness options from light to extra heavy for decorative through structural applications.\u003c\/li\u003e\n\u003cli\u003eExact factory dimensions listed by outside diameter, inside diameter, insert wire gauge, and wall type for accurate planning.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard silver soldering, stone setting, and forming techniques used in jewelry studios.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eOutside × Inside Diameter\u003c\/th\u003e\n\u003cth\u003eInsert Wire (Gauge)\u003c\/th\u003e\n\u003cth\u003eWall\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-1611\/12\u003c\/td\u003e\n\u003ctd\u003e1.62 mm (0.064\") OD × 1.11 mm (0.044\") ID\u003c\/td\u003e\n\u003ctd\u003e18 ga\u003c\/td\u003e\n\u003ctd\u003e0.25 mm (0.010\") light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-2010\/12\u003c\/td\u003e\n\u003ctd\u003e2.03 mm (0.080\") OD × 1.00 mm (0.039\") ID\u003c\/td\u003e\n\u003ctd\u003e19 ga\u003c\/td\u003e\n\u003ctd\u003e0.50 mm (0.020\") heavy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-2015\/12\u003c\/td\u003e\n\u003ctd\u003e2.03 mm (0.080\") OD × 1.52 mm (0.060\") ID\u003c\/td\u003e\n\u003ctd\u003e15 ga\u003c\/td\u003e\n\u003ctd\u003e0.25 mm (0.010\") light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-2515\/12\u003c\/td\u003e\n\u003ctd\u003e2.56 mm (0.101\") OD × 1.54 mm (0.061\") ID\u003c\/td\u003e\n\u003ctd\u003e15 ga\u003c\/td\u003e\n\u003ctd\u003e0.50 mm (0.020\") heavy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-2520\/12\u003c\/td\u003e\n\u003ctd\u003e2.56 mm (0.101\") OD × 2.05 mm (0.081\") ID\u003c\/td\u003e\n\u003ctd\u003e13 ga\u003c\/td\u003e\n\u003ctd\u003e0.25 mm (0.010\") light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-3025\/12\u003c\/td\u003e\n\u003ctd\u003e3.02 mm (0.119\") OD × 2.26 mm (0.089\") ID\u003c\/td\u003e\n\u003ctd\u003e13 ga\u003c\/td\u003e\n\u003ctd\u003e0.40 mm (0.016\") medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-3121\/12\u003c\/td\u003e\n\u003ctd\u003e3.25 mm (0.128\") OD × 2.23 mm (0.088\") ID\u003c\/td\u003e\n\u003ctd\u003e12 ga\u003c\/td\u003e\n\u003ctd\u003e0.50 mm (0.020\") heavy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-3126\/12\u003c\/td\u003e\n\u003ctd\u003e3.25 mm (0.128\") OD × 2.74 mm (0.108\") ID\u003c\/td\u003e\n\u003ctd\u003e10 ga\u003c\/td\u003e\n\u003ctd\u003e0.25 mm (0.010\") light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-3525\/12\u003c\/td\u003e\n\u003ctd\u003e3.55 mm (0.140\") OD × 2.54 mm (0.100\") ID\u003c\/td\u003e\n\u003ctd\u003e11 ga\u003c\/td\u003e\n\u003ctd\u003e0.50 mm (0.020\") heavy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-3830\/12\u003c\/td\u003e\n\u003ctd\u003e3.86 mm (0.152\") OD × 3.09 mm (0.122\") ID\u003c\/td\u003e\n\u003ctd\u003e9 ga\u003c\/td\u003e\n\u003ctd\u003e0.40 mm (0.016\") medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-4535\/12\u003c\/td\u003e\n\u003ctd\u003e4.57 mm (0.180\") OD × 3.55 mm (0.140\") ID\u003c\/td\u003e\n\u003ctd\u003e8 ga\u003c\/td\u003e\n\u003ctd\u003e0.50 mm (0.020\") heavy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-4840\/12\u003c\/td\u003e\n\u003ctd\u003e4.87 mm (0.192\") OD × 4.11 mm (0.162\") ID\u003c\/td\u003e\n\u003ctd\u003e7 ga\u003c\/td\u003e\n\u003ctd\u003e0.40 mm (0.016\") medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-5643\/12\u003c\/td\u003e\n\u003ctd\u003e5.61 mm (0.221\") OD × 4.34 mm (0.171\") ID\u003c\/td\u003e\n\u003ctd\u003e6 ga\u003c\/td\u003e\n\u003ctd\u003e0.625 mm (0.025\") extra heavy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e844-5850\/12\u003c\/td\u003e\n\u003ctd\u003e5.86 mm (0.231\") OD × 5.10 mm (0.201\") ID\u003c\/td\u003e\n\u003ctd\u003e5 ga\u003c\/td\u003e\n\u003ctd\u003e0.40 mm (0.016\") medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFor hinge making:\u003c\/strong\u003e Select a wire diameter slightly smaller than the tubing inside diameter so the hinge pin turns freely without binding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor tube setting faceted stones:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChoose a tubing outside diameter approximately 0.5 mm larger than the stone and an inside diameter smaller than the stone, so the stone rests on a seat instead of falling through.\u003c\/li\u003e\n\u003cli\u003eUse a setting bur the same size as the stone. If the stone falls between bur sizes, choose tubing the next size smaller and expand it slightly with a center punch.\u003c\/li\u003e\n\u003cli\u003eThis method produces a subtle taper in the setting that can be visually appealing and secure.\u003c\/li\u003e\n\u003cli\u003eBezel setting tools such as Part #153.154MA can speed up and standardize tube settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eShorter 3\" lengths of comparable sterling silver tubing are available separately under Part #844-1005MAIN.\u003c\/p\u003e","brand":"Harmony","offers":[{"title":"1.6mm OD x 1.15mm ID","offer_id":47551865094358,"sku":"844-1611\/12","price":22.42,"currency_code":"USD","in_stock":false},{"title":"2.0mm OD x 1.0mm ID","offer_id":47551865127126,"sku":"844-2010\/12","price":45.23,"currency_code":"USD","in_stock":false},{"title":"2.0mm OD x 1.50mm ID","offer_id":47551865159894,"sku":"844-2015\/12","price":33.56,"currency_code":"USD","in_stock":true},{"title":"2.5mm OD x 1.50mm ID","offer_id":47551865192662,"sku":"844-2515\/12","price":62.35,"currency_code":"USD","in_stock":true},{"title":"2.5mm OD x 2.00mm ID","offer_id":47551865225430,"sku":"844-2520\/12","price":37.92,"currency_code":"USD","in_stock":true},{"title":"3.0mm OD x 2.26mm ID","offer_id":47551865258198,"sku":"844-3025\/12","price":60.75,"currency_code":"USD","in_stock":true},{"title":"3.25mm OD x 2.2mm ID","offer_id":47551865290966,"sku":"844-3121\/12","price":85.66,"currency_code":"USD","in_stock":true},{"title":"3.13mm OD x 2.63mm ID","offer_id":47551865323734,"sku":"844-3126\/12","price":47.68,"currency_code":"USD","in_stock":true},{"title":"3.55mm OD x 2.54mm ID","offer_id":47551865356502,"sku":"844-3525\/12","price":88.91,"currency_code":"USD","in_stock":false},{"title":"3.8mm OD x 3.09mm ID","offer_id":47551865389270,"sku":"844-3830\/12","price":80.19,"currency_code":"USD","in_stock":true},{"title":"4.57mm OD x 3.55mm ID","offer_id":47551865422038,"sku":"844-4535\/12","price":116.63,"currency_code":"USD","in_stock":true},{"title":"4.8mm OD x 4.0mm ID","offer_id":47551865454806,"sku":"844-4840\/12","price":106.24,"currency_code":"USD","in_stock":true},{"title":"5.6mm OD x 4.34mm ID","offer_id":47551865487574,"sku":"844-5643\/12","price":187.9,"currency_code":"USD","in_stock":true},{"title":"5.8mm OD x 5.0mm ID","offer_id":47551865520342,"sku":"844-5850\/12","price":124.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/sterling-silver-round-tubing-sold-in-12-lengths-otto-frei-1.jpg?v=1714517868","url":"https:\/\/www.ottofrei.com\/ja\/products\/sterling-silver-seamless-round-tubing-12in-lengths-1-62-5-86mm","provider":"Otto Frei","version":"1.0","type":"link"}