{"product_id":"18k-hallmark-stamp-straight-square-shank-1mm","title":"18K Straight Square Shank Hallmark Stamp 1\/25\" (1.00mm) Impression Height","description":"\u003cp\u003eThis straight square shank 18K hallmark stamp is precision cut from heat-treated tool steel, designed for marking gold alloys containing no less than 75% pure gold by weight. The straight shank configuration is ideal for stamping flat surfaces, leaving a clean, sunken impression with each strike.\u003c\/p\u003e\u003cp\u003eThe 1\/25\" (1.00mm) measurement refers to the \u003cem\u003eheight of the impression\u003c\/em\u003e, not the width. If you need to mark the inside of rings or curved interior surfaces, a bent stamp is recommended instead of this straight style.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMarks gold alloys with a minimum of 75% pure gold content by weight\u003c\/li\u003e\n\u003cli\u003ePrecision cut heat-treated tool steel construction\u003c\/li\u003e\n\u003cli\u003eStraight square shank design for use on flat surfaces\u003c\/li\u003e\n\u003cli\u003eLeaves a sunken impression\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eImpression Height\u003c\/th\u003e\n\u003ctd\u003e1\/25\" (1.00mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Type\u003c\/th\u003e\n\u003ctd\u003eStraight square shank\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 Style\u003c\/th\u003e\n\u003ctd\u003eSunken\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended Use\u003c\/th\u003e\n\u003ctd\u003eFlat surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eMade in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe 1.00mm measurement refers to the height of the impression, not the width.\u003c\/li\u003e\n\u003cli\u003eFor marking the inside of rings or curved surfaces, use a bent hallmark stamp instead of this straight style.\u003c\/li\u003e\n\u003cli\u003eThis product is subject to California Proposition 65 warnings.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43552285393110,"sku":"155.294","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/18k-straight-square-shank-hallmark-stamp-125-1-00mm-impression-height-otto-frei.jpg?v=1719959079","url":"https:\/\/www.ottofrei.com\/products\/18k-hallmark-stamp-straight-square-shank-1mm","provider":"Otto Frei","version":"1.0","type":"link"}