{"product_id":"14k-bent-square-shank-hallmark-stamps-3-sizes","title":"14K Bent Square Shank Hallmark Stamps-3 Sizes","description":"\u003cp\u003eThese bent square shank 14K hallmark stamps are purpose-built for marking precious metals with precision and consistency. Crafted from heat-treated tool steel with precision cutting, they produce clean, sunken impressions ideal for karat identification. The bent shank design — also known as a gooseneck style — allows access to the inside of rings and other curved or hard-to-reach surfaces where a straight stamp cannot reach. Made in the USA and Germany, these stamps are a reliable professional tool for jewelers and metalsmiths working with precious metals.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: Measurement refers to the height of the impression, not the width.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBent (gooseneck) shank design for marking inside rings and curved surfaces\u003c\/li\u003e\n\u003cli\u003eSquare shank for secure grip and controlled placement\u003c\/li\u003e\n\u003cli\u003ePrecision-cut, heat-treated tool steel construction\u003c\/li\u003e\n\u003cli\u003eProduces sunken impressions on precious metals\u003c\/li\u003e\n\u003cli\u003e14K hallmark designation\u003c\/li\u003e\n\u003cli\u003eMade in the USA and Germany\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eStamp Type\u003c\/th\u003e\n\u003ctd\u003e14K Hallmark\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Style\u003c\/th\u003e\n\u003ctd\u003eBent square shank (gooseneck)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHeat-treated tool steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpression Type\u003c\/th\u003e\n\u003ctd\u003eSunken\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA and Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eImpression Height\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e155.261\u003c\/td\u003e\n\u003ctd\u003eLarge\u003c\/td\u003e\n\u003ctd\u003e1.00 mm (1\/25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e155.262\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003e0.75–0.80 mm (1\/32\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e155.263\u003c\/td\u003e\n\u003ctd\u003eSmall\u003c\/td\u003e\n\u003ctd\u003e0.50–0.60 mm (1\/45\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"1.00mm","offer_id":47551749226710,"sku":"155.261","price":33.0,"currency_code":"USD","in_stock":true},{"title":"0.80mm","offer_id":47551749259478,"sku":"155.262","price":33.0,"currency_code":"USD","in_stock":true},{"title":"0.60mm","offer_id":47551749292246,"sku":"155.263","price":33.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/14k-bent-square-shank-hallmark-stamps-3-sizes-otto-frei.jpg?v=1719955170","url":"https:\/\/www.ottofrei.com\/products\/14k-bent-square-shank-hallmark-stamps-3-sizes","provider":"Otto Frei","version":"1.0","type":"link"}