{"title":"Gauges \u0026 Calipers","description":"","products":[{"product_id":"bergeon-5235-pb-white-delrin-ring-stick","title":"Bergeon 5235-PB White Delrin High Precision Swiss Ring Stick","description":"\u003cp\u003eThe Bergeon 5235-PB White Delrin Ring Stick is widely regarded as one of the most precise and reliable ring measuring tools available to professional jewelers. Machined in Switzerland, this ring stick features a non-scratch white Delrin construction that protects finished metal rings during sizing—making it an ideal bench tool for everyday use in professional jewelry studios.\u003c\/p\u003e\n\u003cp\u003eThe stick measures 250 mm (9-7\/8\") in total length including the handle. Two measuring systems are presented on opposite sides of the stick, allowing quick reference across multiple international sizing standards without needing to flip between separate tools.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhite Delrin material will not scratch or mar metal ring surfaces\u003c\/li\u003e\n\u003cli\u003eDual-sided layout covers both USA and French ring sizing systems\u003c\/li\u003e\n\u003cli\u003eUSA side graduated in sizes 1–15 with diameter markings from 13.0 mm to 24.2 mm\u003c\/li\u003e\n\u003cli\u003eFrench side graduated in sizes 1–36 with circumference markings from 41 mm to 76 mm\u003c\/li\u003e\n\u003cli\u003eTotal length of 250 mm (9-7\/8\") including handle\u003c\/li\u003e\n\u003cli\u003eHigh-precision graduations for accurate, repeatable measurements\u003c\/li\u003e\n\u003cli\u003eMade in Switzerland\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\u003eBergeon 5235-PB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eWhite Delrin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Length\u003c\/th\u003e\n\u003ctd\u003e250 mm (9-7\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUSA Sizes\u003c\/th\u003e\n\u003ctd\u003e1–15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003e13.0 mm – 24.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrench Sizes\u003c\/th\u003e\n\u003ctd\u003e1–36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircumference Range\u003c\/th\u003e\n\u003ctd\u003e41 mm – 76 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSwitzerland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThis ring stick is also available in \u003cstrong\u003eBlack Delrin\u003c\/strong\u003e (Bergeon 5235-PN, OttoFrei 135.279D) and in \u003cstrong\u003eAluminum\u003c\/strong\u003e (Bergeon 5235, OttoFrei 135.279). Matching Bergeon ring finger gauges are available separately: Bergeon 5236C (OttoFrei 135.269), Bergeon 4286 (OttoFrei 135.268WB), and Bergeon 1311-A (OttoFrei 135.268FB).\u003c\/p\u003e","brand":"Bergeon","offers":[{"title":"Default Title","offer_id":43552278741206,"sku":"135.279W","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/bergeon-5235-pb-white-delrin-high-precision-swiss-ring-stick-otto-frei.jpg?v=1719959081"},{"product_id":"ikohe-true-size-ring-sizing-system-3mm-comfort-fit-47-rings-aluminum-stick","title":"True Size Ring Sizing System-3mm Wide Bands with Matching Aluminum Ring Stick","description":"\u003cp\u003eThe \u003cstrong\u003eIkohe True Size Ring Sizing System\u003c\/strong\u003e is a complete, precision-calibrated ring sizing solution designed to eliminate the mismatch problems that plague front-counter-to-bench workflows. This set features \u003cstrong\u003e47 beautifully finished, comfort fit, 3 mm wide True Size Precision Sizing Rings\u003c\/strong\u003e in USA ring sizes 1–16 in half sizes and sizes 4–12 in quarter sizes. Every ring is faceted and laser etched with its size for clear, confident identification.\u003c\/p\u003e\n\u003cp\u003eEach system comes in a \u003cstrong\u003eblack wooden presentation box\u003c\/strong\u003e and includes a \u003cstrong\u003eUniversal Sizing Chart\u003c\/strong\u003e and a \u003cstrong\u003ematching calibrated True Size Aluminum Ring Stick\u003c\/strong\u003e. The Universal Sizing Chart converts USA sizes into sizing systems used worldwide, including the UK and Australian alphabet standard and the European metric system. Diameter and circumference conversions are provided so jewelers and sales staff can communicate ring sizing with maximum precision.\u003c\/p\u003e\n\u003cp\u003eCorrect sizing begins at the front counter, where customers are measured using the comfort fit 3 mm wide ring sizers. If a customer brings a ring for size verification, the matching True Size Aluminum Ring Stick provides a reliable double-check. Once a size is confirmed, your bench jeweler can produce an accurately sized job using the True Size Steel Ring Mandrels—precision calibrated to match the ring stick and sizers exactly.\u003c\/p\u003e\n\u003cp\u003ePairing this system with the \u003cstrong\u003eTrue Size Ring Mandrels\u003c\/strong\u003e (available separately—see related products) creates a fully matched toolset from the sales floor to the jeweler's bench. Also available with 6 mm wide comfort fit bands; see part number 135.295. \u003cem\u003eFormerly branded as the Wolf Tools True Size Ring Sizing System.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e47 comfort fit, 3 mm wide precision sizing rings\u003c\/li\u003e\n\u003cli\u003eUSA sizes 1–16 in half sizes; sizes 4–12 in quarter sizes\u003c\/li\u003e\n\u003cli\u003eEach ring is faceted and laser etched with its size\u003c\/li\u003e\n\u003cli\u003eIncludes a matching calibrated True Size Aluminum Ring Stick\u003c\/li\u003e\n\u003cli\u003eIncludes a Universal Sizing Chart with USA, UK\/Australian, and European metric conversions\u003c\/li\u003e\n\u003cli\u003eDiameter and circumference dimension conversions provided\u003c\/li\u003e\n\u003cli\u003ePrecision calibrated to match True Size Steel Ring Mandrels\u003c\/li\u003e\n\u003cli\u003ePresented in a black wooden box\u003c\/li\u003e\n\u003cli\u003eEliminates sizing discrepancies caused by mismatched tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBand Width\u003c\/th\u003e\n\u003ctd\u003e3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBand Style\u003c\/th\u003e\n\u003ctd\u003eComfort fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Sizing Rings\u003c\/th\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range (Half Sizes)\u003c\/th\u003e\n\u003ctd\u003eUSA 1–16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range (Quarter Sizes)\u003c\/th\u003e\n\u003ctd\u003eUSA 4–12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRing Stick Material\u003c\/th\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePresentation\u003c\/th\u003e\n\u003ctd\u003eBlack wooden box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSizing Chart Included\u003c\/th\u003e\n\u003ctd\u003eYes—Universal Sizing Chart (USA, UK\/Australian, European metric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e47 comfort fit 3 mm wide True Size Precision Sizing Rings\u003c\/li\u003e\n\u003cli\u003eCalibrated True Size Aluminum Ring Stick\u003c\/li\u003e\n\u003cli\u003eUniversal Sizing Chart\u003c\/li\u003e\n\u003cli\u003eBlack wooden presentation box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned to be used with True Size Steel Ring Mandrels (sold separately). The ring sizers, aluminum ring stick, and steel mandrels are precision calibrated to match one another, ensuring consistent sizing from the front counter to the jeweler's bench.\u003c\/p\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlso available with 6 mm wide comfort fit bands—see part number 135.295.\u003c\/li\u003e\n\u003cli\u003eFormerly branded as the Wolf Tools True Size Ring Sizing System.\u003c\/li\u003e\n\u003cli\u003eTrue Size Ring Mandrels are available separately; see related products.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ikohe","offers":[{"title":"Default Title","offer_id":43552934625494,"sku":"135.293","price":204.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/true-size-ring-sizing-system-3mm-wide-bands-with-matching-aluminum-ring-stick-otto-frei.jpg?v=1719959074"},{"product_id":"circle-center-finder-100mm-german","title":"German Made Circle Center Finder With 100mm Scale","description":"\u003cp\u003eThis professional-grade circle center finder is imported from Germany and crafted from fine tool steel. Designed for precision layout work, it locates the center of any round item quickly and accurately — making it an essential bench tool for jewelers, metalsmiths, and those working in wax fabrication. The clearly graduated millimeter scale allows for confident, repeatable measurements across a wide range of circular stock.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLocates the center of any round item with precision\u003c\/li\u003e\n\u003cli\u003eGraduated scale marked in millimeters from 0–100mm\u003c\/li\u003e\n\u003cli\u003eConstructed from fine tool steel for durability and accuracy\u003c\/li\u003e\n\u003cli\u003eWell-suited for wax working and metal fabrication\u003c\/li\u003e\n\u003cli\u003eImported from Germany\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eFine tool steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScale Range\u003c\/th\u003e\n\u003ctd\u003e0–100mm (graduated in millimeters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003e6 in (150mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e3-3\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579646640342,"sku":"135.117","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/german-made-circle-center-finder-with-100mm-scale-otto-frei.jpg?v=1719958520"},{"product_id":"ring-finger-gauge-super-jumbo-sizes-16-24","title":"Ring Finger Gauge-Super Jumbo Sizes 16-24 USA Sizes","description":"\u003cp\u003eThe Super Jumbo Ring Finger Gauge covers USA sizes 16 through 24, including half sizes, making it an essential tool for fitting clients with larger finger sizes that standard gauges simply cannot reach. Crafted from nickel-plated brass, this gauge is built for durability at the bench. Red stamped size numbers ensure quick, accurate readings even in busy shop conditions.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCovers USA ring sizes 16–24, including half sizes\u003c\/li\u003e\n\u003cli\u003eNickel-plated brass construction for lasting durability\u003c\/li\u003e\n\u003cli\u003eRed stamped size numbers for easy, at-a-glance reading\u003c\/li\u003e\n\u003cli\u003eIdeal for fitting clients who require larger ring sizes beyond standard gauge ranges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003eUSA sizes 16–24 (including half sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eNickel-plated brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize System\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579663155414,"sku":"135.240","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/ring-finger-gauge-super-jumbo-sizes-16-24-usa-sizes-otto-frei.jpg?v=1719958515"},{"product_id":"swg-wire-sheet-gauge-0-36-stainless","title":"Closeout Value Line Wire \u0026 Sheet Gauge-S.W.G. 0-36","description":"\u003cp\u003eA reliable bench tool for measuring non-ferrous wire and sheet metal, this gauge uses the \u003cstrong\u003eBritish Standard Wire Gauge (S.W.G.)\u003c\/strong\u003e — also known as Sterling Wire Gauge — with numerical ratings from \u003cstrong\u003e0 to 36\u003c\/strong\u003e. Size 0 represents the thickest measurement and 36 the thinnest. Decimal equivalents in inches are displayed on the reverse side for quick reference.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eImportant:\u003c\/em\u003e This gauge uses the S.W.G. standard and is \u003cstrong\u003enot\u003c\/strong\u003e equivalent to the Brown \u0026amp; Sharpe (B\u0026amp;S) gauge used as the U.S. standard for non-ferrous wire. If you require B\u0026amp;S measurements, see part number 135.568.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMeasures non-ferrous wire and sheet metal using the British Standard Wire Gauge (S.W.G.) system\u003c\/li\u003e\n\u003cli\u003eGauge range: 0 (thickest) through 36 (thinnest)\u003c\/li\u003e\n\u003cli\u003eDecimal inch equivalents displayed on the reverse side\u003c\/li\u003e\n\u003cli\u003eMade of stainless steel for durability at the bench\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eGauge Standard\u003c\/th\u003e\n\u003ctd\u003eBritish Standard Wire Gauge (S.W.G.) \/ Sterling Wire Gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003ctd\u003e0–36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDecimal Equivalents\u003c\/th\u003e\n\u003ctd\u003eInches, displayed on reverse side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eThis gauge measures using the S.W.G. (British\/Sterling) standard only. It does \u003cstrong\u003enot\u003c\/strong\u003e display U.S. standard (B\u0026amp;S \/ Brown \u0026amp; Sharpe) measurements for non-ferrous wire. This item is part of a closeout offering and may have limited availability.\u003c\/p\u003e","brand":"Value Line","offers":[{"title":"Default Title","offer_id":43579668627670,"sku":"135.569","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/closeout-value-line-wire-and-sheet-gauge-s-w-g-0-36-otto-frei.jpg?v=1719958515"},{"product_id":"mitutoyo-digimatic-digital-caliper-6in","title":"Mitutoyo 6\" (150mm) Digimatic Electronic Digital Caliper","description":"\u003cp\u003eThe Mitutoyo Digimatic Absolute 500-196-30 is our finest electronic digital caliper, engineered for professional jewelers, metalsmiths, and watchmakers who demand precision and reliability at the bench. Featuring Mitutoyo's patented \u003cstrong\u003eAdvanced Onsite Sensor (AOS)\u003c\/strong\u003e technology, this caliper delivers improved measurement dependability with enhanced resistance to the demanding conditions of a working shop environment.\u003c\/p\u003e\u003cp\u003eMeasuring inside and outside dimensions in both inches and millimeters, the 500-196-30 switches between unit systems at the touch of a button. A large LCD display ensures readings are easy to confirm at a glance, while the smooth thumb roller makes one-handed operation comfortable and intuitive. Constructed from stainless steel and made in Japan, this caliper reflects the craftsmanship and quality Mitutoyo is known for worldwide.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePatented Advanced Onsite Sensor (AOS) technology for improved measurement dependability\u003c\/li\u003e\n\u003cli\u003eIncreased resistance to harsh workshop conditions\u003c\/li\u003e\n\u003cli\u003eMeasures both inside and outside dimensions\u003c\/li\u003e\n\u003cli\u003eReads in inches and millimeters — switch instantly with one button\u003c\/li\u003e\n\u003cli\u003eLarge, easy-to-read LCD display\u003c\/li\u003e\n\u003cli\u003eZero set button for convenient relative measurements\u003c\/li\u003e\n\u003cli\u003eComfortable thumb roller for smooth, controlled sliding action\u003c\/li\u003e\n\u003cli\u003eStainless steel construction\u003c\/li\u003e\n\u003cli\u003ePowered by a single SR44 button cell with up to 3 years of battery life under normal use\u003c\/li\u003e\n\u003cli\u003eMade in Japan by Mitutoyo\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e500-196-30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange (Imperial)\u003c\/th\u003e\n\u003ctd\u003e0–6 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy (Imperial)\u003c\/th\u003e\n\u003ctd\u003e±0.001\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution (Imperial)\u003c\/th\u003e\n\u003ctd\u003e0.0005\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange (Metric)\u003c\/th\u003e\n\u003ctd\u003e0–150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy (Metric)\u003c\/th\u003e\n\u003ctd\u003e±0.03 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution (Metric)\u003c\/th\u003e\n\u003ctd\u003e0.01 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Source\u003c\/th\u003e\n\u003ctd\u003eSingle SR44 button cell (357 type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Life\u003c\/th\u003e\n\u003ctd\u003eUp to 3 years under normal use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eMade in Japan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eOne year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMitutoyo 500-196-30 Digimatic Caliper\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eBattery (SR44 \/ 357 type button cell)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mitutoyo","offers":[{"title":"Default Title","offer_id":43579677868246,"sku":"135.002","price":192.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/mitutoyo-6-150mm-digimatic-electronic-digital-caliper-otto-frei-1.jpg?v=1719958515"},{"product_id":"mitutoyo-digimatic-digital-caliper-500-195-20","title":"Mitutoyo 4\" (100mm) Digimatic Electronic Digital Caliper","description":"\u003cp\u003eThe Mitutoyo Digimatic 500-195-20 is a professional-grade electronic digital caliper engineered for precision measurement in demanding workshop environments. Made in Japan from stainless steel, this caliper delivers the accuracy and build quality that professional jewelers, metalsmiths, and watchmakers require for critical inside and outside measurements.\u003c\/p\u003e\n\n\u003cp\u003eAt the heart of this caliper is Mitutoyo's patented Advanced Onsite Sensor (AOS) technology—an exclusive electromagnetic induction-based system that significantly improves measurement dependability and resistance to harsh workshop conditions including coolants, oil, and dust. The thumb roller provides smooth, comfortable operation for precise jaw positioning.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePatented AOS (Advanced Onsite Sensor) electromagnetic induction technology for enhanced reliability\u003c\/li\u003e\n\u003cli\u003eMeasures inside and outside dimensions in both inches and millimeters\u003c\/li\u003e\n\u003cli\u003eInstant inch\/millimeter conversion at the touch of a button\u003c\/li\u003e\n\u003cli\u003eLarge LCD display for easy reading\u003c\/li\u003e\n\u003cli\u003eZero set button for quick referencing\u003c\/li\u003e\n\u003cli\u003eComfortable thumb roller for smooth, controlled jaw movement\u003c\/li\u003e\n\u003cli\u003eStainless steel construction for durability\u003c\/li\u003e\n\u003cli\u003ePowered by a single SR44 (357 type) button cell battery\u003c\/li\u003e\n\u003cli\u003eBattery life up to 3 years under normal use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e500-195-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eMade in Japan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range (Inch)\u003c\/th\u003e\n\u003ctd\u003e0–4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy (Inch)\u003c\/th\u003e\n\u003ctd\u003e±0.001\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution (Inch)\u003c\/th\u003e\n\u003ctd\u003e0.0005\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range (Metric)\u003c\/th\u003e\n\u003ctd\u003e0–100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy (Metric)\u003c\/th\u003e\n\u003ctd\u003e±0.03 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution (Metric)\u003c\/th\u003e\n\u003ctd\u003e0.01 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eLarge LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery\u003c\/th\u003e\n\u003ctd\u003eSingle SR44 \/ 357 type button cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Life\u003c\/th\u003e\n\u003ctd\u003eUp to 3 years under normal use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eOne year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMitutoyo Digimatic 500-195-20 electronic digital caliper\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eBattery (pre-installed)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mitutoyo","offers":[{"title":"Default Title","offer_id":43579684815062,"sku":"135.003","price":209.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/mitutoyo-4-100mm-digimatic-electronic-digital-caliper-otto-frei.jpg?v=1719958511"},{"product_id":"electronic-digital-caliper-100mm","title":"4 Inch (100mm) Electronic Digital Caliper","description":"\u003cp\u003eThis stainless steel electronic digital caliper is a go-to precision measuring tool for jewelers and metalsmiths working with stones, findings, and components that demand accurate dimensions. Measuring from 0–100mm (0–4 inches), it delivers reliable readings with fine resolution, making it a practical replacement for less accurate gauges on the bench.\u003c\/p\u003e\n\n\u003cp\u003eA zero reset button lets you take instant relative measurements, while the metric-to-inch conversion button allows you to switch between measurement systems without recalculating. The included plastic storage case keeps the caliper protected when not in use, and a battery is included so the tool is ready to use out of the box.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStainless steel construction for durability and resistance to everyday bench wear\u003c\/li\u003e\n\u003cli\u003eMeasures 0–100mm (0–4 inches) for versatile use across stones, findings, and components\u003c\/li\u003e\n\u003cli\u003eAccuracy of ±0.03mm (±0.001\") with 0.01mm (0.0005\") resolution\u003c\/li\u003e\n\u003cli\u003eZero reset button for quick relative measurements\u003c\/li\u003e\n\u003cli\u003eMetric-to-inch conversion button for fast unit switching\u003c\/li\u003e\n\u003cli\u003ePlastic storage case included for protection and organization\u003c\/li\u003e\n\u003cli\u003eBattery included — ready to use immediately\u003c\/li\u003e\n\u003cli\u003eOne-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e0–100mm (0–4 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy\u003c\/th\u003e\n\u003ctd\u003e±0.03mm \/ ±0.001\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd\u003e0.01mm \/ 0.0005\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit Conversion\u003c\/th\u003e\n\u003ctd\u003eMetric and inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Type\u003c\/th\u003e\n\u003ctd\u003e357 type button cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage Case\u003c\/th\u003e\n\u003ctd\u003ePlastic storage case included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eOne year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElectronic digital caliper\u003c\/li\u003e\n\u003cli\u003ePlastic storage case\u003c\/li\u003e\n\u003cli\u003eBattery (357 type button cell)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eUses 357 type replacement button cells when battery replacement is needed.\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579694153942,"sku":"135.187","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/4-inch-100mm-electronic-digital-caliper-otto-frei.jpg?v=1719958511"},{"product_id":"german-machinist-square-billet-100mm","title":"German Machinist Square With Foot-100mm X 70mm (2.75 Inch) KR","description":"\u003cp\u003eA machinist square is the metalworker's equivalent of a woodworker's try square. The term \u003cem\u003esquare\u003c\/em\u003e refers to the tool's primary function: measuring the accuracy of a right angle (90 degrees). To \u003cem\u003etry\u003c\/em\u003e a surface is to check its straightness or its correspondence to an adjoining surface. This German-made machinist square is engineered for professional accuracy and built to outlast lesser alternatives.\u003c\/p\u003e\n\n\u003cp\u003eUnlike less expensive machinist squares that are welded together from two separate pieces of material, this square is \u003cstrong\u003emachined from a single piece of bar stock (billet)\u003c\/strong\u003e, ensuring superior rigidity and precision. The foot is a separate piece. A small notch has been added to the inside corner of the square to prevent small particles from accumulating and affecting the tool's reading.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMachined from a single piece of bar stock (billet) — not welded from two pieces\u003c\/li\u003e\n\u003cli\u003eInside corner notch prevents particle accumulation for accurate readings\u003c\/li\u003e\n\u003cli\u003eConstructed from stainless steel (INOX)\u003c\/li\u003e\n\u003cli\u003eBack accuracy in accordance with DIN 875\/II (DIN 875\/2) standards\u003c\/li\u003e\n\u003cli\u003eGerman made\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel (INOX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFoot Length\u003c\/th\u003e\n\u003ctd\u003e70 mm (2.75 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Height (on foot)\u003c\/th\u003e\n\u003ctd\u003e105 mm (4.13 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy Standard\u003c\/th\u003e\n\u003ctd\u003eDIN 875\/II (DIN 875\/2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eSingle-piece billet body; separate foot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579696873686,"sku":"135.070G","price":53.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/german-machinist-square-with-foot-100mm-x-70mm-2-75-inch-kr-otto-frei.jpg?v=1719958511"},{"product_id":"german-machinist-square-75mm-50mm","title":"German Machinist Square 75mm X 50mm (2 Inch)","description":"\u003cp\u003eA precision tool machined from a single piece of bar stock (billet), this German machinist square is the metalworker's equivalent of a woodworker's try square. The term \u003cem\u003esquare\u003c\/em\u003e refers to the tool's primary function: measuring the accuracy of a right angle (90°). A small notch cut into the inside corner prevents fine particles from accumulating and affecting the square's reading accuracy.\u003c\/p\u003e\u003cp\u003eUnlike less expensive machinist squares welded together from two separate pieces of material, this square is machined entirely from one piece of stainless steel (INOX) bar stock. The result is superior rigidity and long-term dimensional stability. It features a 50 mm (2\") foot and stands 75 mm (3\"), making it well suited for close-tolerance bench work, layout tasks, and inspecting right angles on small workpieces. Accuracy meets DIN 875\/II (DIN 875\/2) standards.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMachined from a single piece of bar stock (billet) — no welds or joints\u003c\/li\u003e\n\u003cli\u003eStainless steel (INOX) construction for durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eInside-corner notch prevents particle buildup that could affect readings\u003c\/li\u003e\n\u003cli\u003eAccuracy in accordance with DIN 875\/II (DIN 875\/2) standards\u003c\/li\u003e\n\u003cli\u003eCompact size ideal for jewelers, metalsmiths, and precision bench work\u003c\/li\u003e\n\u003cli\u003eGerman made\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel (INOX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFoot Length\u003c\/th\u003e\n\u003ctd\u003e50 mm (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStanding Height\u003c\/th\u003e\n\u003ctd\u003e75 mm (3\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy Standard\u003c\/th\u003e\n\u003ctd\u003eDIN 875\/II (DIN 875\/2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eSingle-piece billet (bar stock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × German machinist square, 75 mm × 50 mm\u003c\/li\u003e\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579697037526,"sku":"135.065","price":30.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/135.065NEW_thumb_85bf6b2a-11d3-49fd-a83e-f9715ec51c78.jpg?v=1722988499"},{"product_id":"digital-pocket-gemstone-gauge","title":"Digital Pocket Gemstone Gauge","description":"\u003cp\u003eA compact digital pocket gauge fitted with leverage-type measuring jaws, purpose-built for measuring both set and loose gemstones at the bench. The slim, pocket-friendly form factor makes it easy to reach stones in settings, while the digital readout delivers precise, easy-to-read measurements. Pair this gauge with a gemstone reference book for quick and reliable stone weight estimation.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLeverage-type measuring jaws designed for accessing set and loose stones\u003c\/li\u003e\n  \u003cli\u003eCompact, pocket-sized form for convenient bench use\u003c\/li\u003e\n  \u003cli\u003eDigital readout for fast, accurate measurement\u003c\/li\u003e\n  \u003cli\u003eWell-suited for use alongside gemstone reference books for weight estimation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e20.0 mm (1.03\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd\u003e0.01 mm (0.0005\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eJaw Type\u003c\/th\u003e\n\u003ctd\u003eLeverage-type measuring jaws\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eSet and loose gemstone measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eVariants\u003c\/th\u003e\n\u003ctd\u003eSingle configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579701428438,"sku":"135.189","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/digital-pocket-gemstone-gauge-otto-frei.jpg?v=1719958508"},{"product_id":"center-locator","title":"Center Locator","description":"\u003cp\u003eFind the exact center of round, square, hexagon, and octagon shapes in seconds with the Center Locator. Designed for jewelers, metalsmiths, and bench professionals who need fast, accurate center-finding on a variety of workpiece geometries, this tool eliminates guesswork and speeds up layout work at the bench.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eQuickly locates the exact center of round, square, hexagon, and octagon shapes\u003c\/li\u003e\n\u003cli\u003eWorks across multiple common workpiece geometries in a single tool\u003c\/li\u003e\n\u003cli\u003eDesigned for fast, accurate center-finding at the jeweler's bench\u003c\/li\u003e\n\u003cli\u003eArrives in retail-ready packaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579705229526,"sku":"135.103","price":10.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/center-locator-otto-frei.jpg?v=1719958497"},{"product_id":"electronic-digital-caliper-6-inch-150mm","title":"6 Inch (150mm) Electronic Digital Caliper","description":"\u003cp\u003eThis stainless steel electronic digital caliper is a precision measuring tool for jewelers, metalsmiths, and bench workers. Accurate and easy to read, it replaces less reliable measuring tools and delivers consistent results when measuring stones, findings, and any component requiring an exact dimension. A single button toggles between metric and imperial modes, and a zero re-set button allows fast, convenient incremental measurements at any position along the jaw.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStainless steel construction for durability at the bench\u003c\/li\u003e\n\u003cli\u003eMeasures in both millimeters and inches with one-button conversion\u003c\/li\u003e\n\u003cli\u003eZero re-set button for quick incremental measurements\u003c\/li\u003e\n\u003cli\u003eLarge, easy-to-read digital display\u003c\/li\u003e\n\u003cli\u003eIdeal for measuring stones, findings, wire, sheet, and small components\u003c\/li\u003e\n\u003cli\u003eOne-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range (Metric)\u003c\/th\u003e\n\u003ctd\u003e0–150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMetric Accuracy\u003c\/th\u003e\n\u003ctd\u003e±0.03 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMetric Resolution\u003c\/th\u003e\n\u003ctd\u003e0.01 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range (Imperial)\u003c\/th\u003e\n\u003ctd\u003e0–6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImperial Accuracy\u003c\/th\u003e\n\u003ctd\u003e±0.001 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImperial Resolution\u003c\/th\u003e\n\u003ctd\u003e0.0005 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Type\u003c\/th\u003e\n\u003ctd\u003e357 type button cell (2 included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eOne year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElectronic digital caliper\u003c\/li\u003e\n\u003cli\u003eTwo 357 type button cell batteries (one installed, one spare)\u003c\/li\u003e\n\u003cli\u003ePlastic storage case\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eReplacement batteries are 357 type button cells. Keep the storage case closed when the caliper is not in use to protect the jaws and display.\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579736326358,"sku":"135.185","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/6-inch-150mm-electronic-digital-caliper-otto-frei.jpg?v=1719958491"},{"product_id":"ikohe-true-size-ring-sizing-system-6mm-wide-comfort-fit-47-rings-aluminum-stick","title":"True Size Ring Sizing System-6mm Wide Bands with Matching Aluminum Ring Stick","description":"\u003cp\u003eThe \u003cstrong\u003eIkohe True Size Ring Sizing System\u003c\/strong\u003e is a precision-calibrated, professional-grade ring sizing solution designed to eliminate the chronic problem of mismatched tools between the sales counter and the jeweler's bench. This complete system centers on 47 beautifully finished, comfort fit, 6 mm wide sizing rings and pairs them with a matching calibrated aluminum ring stick — all presented in a black wooden presentation box.\u003c\/p\u003e\n\n\u003cp\u003eSizing rings cover \u003cstrong\u003eUSA ring sizes 1–16 in half sizes\u003c\/strong\u003e and \u003cstrong\u003esizes 4–12 in quarter sizes\u003c\/strong\u003e. Each ring is faceted and laser etched with its size for fast, reliable identification. Because the sizing rings and the True Size Aluminum Ring Stick are precision calibrated to match the True Size Steel Ring Mandrels (available separately), your front-counter measurements translate directly to the bench — no guesswork, no discrepancies.\u003c\/p\u003e\n\n\u003cp\u003eA \u003cstrong\u003eUniversal Sizing Chart\u003c\/strong\u003e is included and provides conversions from USA sizes into sizing systems used worldwide, including the UK and Australian standard alphabet system and the European metric system. Diameter and circumference dimensions are both provided so you can choose the most precise measurement type when communicating ring sizing to the workshop.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFormerly branded as the Wolf Tools True Size Ring Sizing System.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e47 comfort fit, 6 mm wide precision sizing rings\u003c\/li\u003e\n  \u003cli\u003eUSA sizes 1–16 in half sizes; sizes 4–12 in quarter sizes\u003c\/li\u003e\n  \u003cli\u003eEach ring is faceted and laser etched with its size\u003c\/li\u003e\n  \u003cli\u003eIncludes a matching calibrated True Size Aluminum Ring Stick\u003c\/li\u003e\n  \u003cli\u003ePresented in a black wooden presentation box\u003c\/li\u003e\n  \u003cli\u003eIncludes a Universal Sizing Chart for worldwide size conversions\u003c\/li\u003e\n  \u003cli\u003eUniversal Sizing Chart covers UK, Australian alphabet, and European metric systems\u003c\/li\u003e\n  \u003cli\u003eChart provides both diameter and circumference dimension conversions\u003c\/li\u003e\n  \u003cli\u003ePrecision calibrated to match True Size Steel Ring Mandrels (available separately)\u003c\/li\u003e\n  \u003cli\u003eCreates a matched, accurate sizing system from sales counter to jeweler's bench\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eBand Width\u003c\/th\u003e\n\u003ctd\u003e6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBand Style\u003c\/th\u003e\n\u003ctd\u003eComfort fit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eNumber of Sizing Rings\u003c\/th\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eSize Range (Half Sizes)\u003c\/th\u003e\n\u003ctd\u003eUSA 1–16\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eSize Range (Quarter Sizes)\u003c\/th\u003e\n\u003ctd\u003eUSA 4–12\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eRing Markings\u003c\/th\u003e\n\u003ctd\u003eFaceted and laser etched\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eRing Stick Material\u003c\/th\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003ePresentation\u003c\/th\u003e\n\u003ctd\u003eBlack wooden presentation box\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eIkohe (formerly Wolf Tools)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e47 comfort fit 6 mm wide True Size Precision Sizing Rings\u003c\/li\u003e\n  \u003cli\u003eCalibrated True Size Aluminum Ring Stick\u003c\/li\u003e\n  \u003cli\u003eUniversal Sizing Chart\u003c\/li\u003e\n  \u003cli\u003eBlack wooden presentation box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eTrue Size Steel Ring Mandrels are \u003cstrong\u003esold separately\u003c\/strong\u003e and are precision calibrated to match this sizing system. Using the mandrels together with these sizing rings and the aluminum ring stick creates a fully matched, end-to-end sizing system. See related products for compatible mandrels.\u003c\/p\u003e","brand":"Ikohe","offers":[{"title":"Default Title","offer_id":43579773976790,"sku":"135.295","price":218.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/true-size-ring-sizing-system-6mm-wide-bands-with-matching-aluminum-ring-stick-otto-frei.jpg?v=1719958459"},{"product_id":"bergeon-6466-bracelet-wrist-gauge","title":"Bergeon 6466 Bracelet Wrist Gauge Plastic","description":"\u003cp\u003eThe Bergeon 6466 Bracelet Wrist Gauge is a simple, practical tool designed for measuring the inner circumference of bracelets with precision. Made from plastic PVC, this flexible sheet rolls into a cylinder to form a measuring gauge, allowing jewelers and watchmakers to quickly determine the inner circumference of any bracelet. A self-adhesive strip holds the gauge in its rolled position during use, ensuring consistent, accurate readings.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFlexible PVC sheet that rolls into a cylindrical gauge for measuring bracelet inner circumference\u003c\/li\u003e\n\u003cli\u003eSelf-adhesive strip secures the rolled gauge during measurement\u003c\/li\u003e\n\u003cli\u003eMeasures inner circumference from 120–220 mm\u003c\/li\u003e\n\u003cli\u003eLightweight and easy to use at the bench\u003c\/li\u003e\n\u003cli\u003eMade in Switzerland by Bergeon\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePlastic PVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e120–220 mm inner circumference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e8-7\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSwitzerland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eEach (sold by the piece)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Bergeon","offers":[{"title":"Default Title","offer_id":43580643705046,"sku":"135.272","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/bergeon-6466-bracelet-wrist-gauge-plastic-otto-frei.jpg?v=1719958060"},{"product_id":"degree-gauge-0-10mm-10-00mm","title":"Degree Gauge-0.10MM-10.00MM","description":"\u003cp\u003eThis compact pocket-size degree gauge measures from \u003cstrong\u003e0.10 mm to 10.00 mm\u003c\/strong\u003e, making it a practical bench tool for jewelers and metalsmiths who need quick, reliable measurements at the workbench. Well made and offered at an accessible price point, it delivers solid performance for everyday gauging tasks without taking up valuable workspace.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompact, pocket-size design for easy bench access and portability\u003c\/li\u003e\n\u003cli\u003eMeasurement range of 0.10 mm – 10.00 mm\u003c\/li\u003e\n\u003cli\u003eWell-made construction with reliable quality\u003c\/li\u003e\n\u003cli\u003eInexpensive option for professional bench use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e0.10 mm – 10.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eForm Factor\u003c\/th\u003e\n\u003ctd\u003ePocket size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580681814230,"sku":"135.013","price":10.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/degree-gauge-0-10mm-10-00mm-otto-frei.jpg?v=1719958038"},{"product_id":"plastic-ring-finger-gauge-usa-sizes-1-15","title":"Plastic Ring Finger Gauge - USA Standard Sizes 1-15 - 1Piece","description":"\u003cp\u003eA practical, low-cost plastic ring finger gauge covering USA standard sizes 1 through 15, including half sizes. Designed for everyday use at the jewelry counter, this gauge gives customers a reliable way to determine the correct finger size of a recipient who cannot be present for an in-person fitting.\u003c\/p\u003e\u003cp\u003eAn ideal take-home tool to offer potential customers, this gauge helps eliminate guesswork and reduces the chance of a sizing error—a simple, effective way to support the sale and build customer confidence.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCovers USA standard ring sizes 1–15, including half sizes\u003c\/li\u003e\n\u003cli\u003eLightweight plastic construction—easy to handle and distribute\u003c\/li\u003e\n\u003cli\u003eIdeal as a customer take-home sizing tool\u003c\/li\u003e\n\u003cli\u003eHelps determine correct finger size when the recipient cannot be present\u003c\/li\u003e\n\u003cli\u003eCost-effective option for jewelers to keep on hand in quantity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSizing Standard\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1–15, including half sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580682371286,"sku":"135.254A","price":1.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/plastic-ring-finger-gauge-usa-standard-sizes-1-15-1piece-otto-frei.jpg?v=1719958038"},{"product_id":"adjustable-bracelet-wrist-gauge-france","title":"Bracelet Wrist Guage Adjustable Made In France","description":"\u003cp\u003eA reliable bench tool for accurately measuring a customer's wrist before sizing or fabricating a bracelet. This adjustable wrist gauge reads circumference in inches, covering a range of 5\" to 8-3\/4\" to accommodate most adult wrist sizes. Made in France.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures wrist circumference for bracelet sizing\u003c\/li\u003e\n\u003cli\u003eAdjustable design fits a wide range of wrist sizes\u003c\/li\u003e\n\u003cli\u003eReads in inches for straightforward sizing reference\u003c\/li\u003e\n\u003cli\u003eMade in France\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e5\" – 8-3\/4\" circumference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit of Measure\u003c\/th\u003e\n\u003ctd\u003eInches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eFrance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580682764502,"sku":"135.275","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/bracelet-wrist-guage-adjustable-made-in-france-otto-frei.jpg?v=1719958038"},{"product_id":"diamond-fan-style-stone-gauge","title":"Stone Gauge-Accurate Diamond Fan Style","description":"\u003cp\u003eThe \u003cstrong\u003eAccurate Diamond Fan Style Stone Gauge\u003c\/strong\u003e is a compact, practical measuring tool designed for jewelers and gemologists who need quick, reliable stone sizing at the bench. Folding down to the size of a half-dollar, this lightweight aluminum gauge slips easily into an apron pocket or bench tray without taking up valuable workspace.\u003c\/p\u003e\u003cp\u003eThe fan-style design allows you to measure both \u003cstrong\u003eround and baguette stones\u003c\/strong\u003e across a range of \u003cstrong\u003e1\/100 to 2 carats\u003c\/strong\u003e, making it a versatile reference tool for everyday stone identification and setting work.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFan-style design folds compactly to approximately the size of a half-dollar\u003c\/li\u003e\n\u003cli\u003eMeasures round and baguette stones from 1\/100 to 2 carats\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum construction\u003c\/li\u003e\n\u003cli\u003eConvenient pocket or tray storage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e1\/100–2 carats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Shapes\u003c\/th\u003e\n\u003ctd\u003eRound and baguette\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFolded Size\u003c\/th\u003e\n\u003ctd\u003eApproximately half-dollar size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Value Line","offers":[{"title":"Default Title","offer_id":43580683780310,"sku":"135.560","price":4.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/closeout-stone-gauge-accurate-diamond-fan-style-otto-frei.jpg?v=1719958038"},{"product_id":"diamond-stone-gauge-kb","title":"Diamond \u0026 Stone Gauge-K\u0026B Diamond","description":"\u003cp\u003eThe K\u0026amp;B Diamond \u0026amp; Stone Gauge is a compact, professional-grade reference tool designed for bench jewelers who need quick, reliable measurements of loose and set stones as well as settings. Spanning a measurement range of .03 points to 4 carats, this pocket-sized gauge delivers versatile functionality in a slim aluminum body that fits easily in an apron pocket or bench tray.\u003c\/p\u003e\n\n\u003cp\u003eThe center dial rotates to align printed circles indicating both carat weight size and metric size, allowing for fast visual comparison without additional tools. Flip it over, and the reverse side features physical holes marked with the same carat weight and metric information — ideal for checking set stones by feel as well as by sight. A convenient birthstone chart is also printed on the reverse, making this gauge a practical quick-reference for customer consultations and custom work alike.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasures loose stones, set stones, and settings from .03 points to 4 carats\u003c\/li\u003e\n  \u003cli\u003eRotating center dial with printed circles showing carat weight and metric size\u003c\/li\u003e\n  \u003cli\u003eReverse side features physical measurement holes marked with carat weight and metric data\u003c\/li\u003e\n  \u003cli\u003eBirthstone chart printed on reverse side for quick reference\u003c\/li\u003e\n  \u003cli\u003eCompact aluminum construction for durability and portability\u003c\/li\u003e\n  \u003cli\u003ePocket-sized design suitable for bench or counter use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e90mm × 69mm (3‑1\/2\" × 2‑3\/4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e.03 points – 4 carats\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMeasurement Format\u003c\/th\u003e\n\u003ctd\u003eCarat weight and metric size\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eAdditional Reference\u003c\/th\u003e\n\u003ctd\u003eBirthstone chart (reverse side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580684271830,"sku":"135.562","price":10.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/diamond-and-stone-gauge-kandb-diamond-otto-frei.jpg?v=1719958036"},{"product_id":"round-diamond-carat-gauge-001-point-4-carat-stainless-france","title":"Diamond Gauge For Round Shapes-.01 point to 4 Carat Sizes","description":"\u003cp\u003eThis high-quality stainless steel diamond gauge is precision-engineered for measuring the carat sizes of round brilliant cut diamonds. Featuring an oval form factor, the gauge is drilled with precision holes that correspond to carat weights ranging from 0.01 point through 4 carats. Embossed size markings alongside each hole ensure fast, accurate, and easy reading directly at the bench. Made in France.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrecision-drilled holes for accurate carat size measurement of round brilliant cut diamonds\u003c\/li\u003e\n\u003cli\u003eMeasurement range spans 0.01 point to 4 carats\u003c\/li\u003e\n\u003cli\u003eEmbossed size markings for clear, easy reading\u003c\/li\u003e\n\u003cli\u003eOval shape for comfortable handling at the workbench\u003c\/li\u003e\n\u003cli\u003eHigh-quality stainless steel construction for durability and longevity\u003c\/li\u003e\n\u003cli\u003eMade in France\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e0.01 point–4 carats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Type\u003c\/th\u003e\n\u003ctd\u003eRound Brilliant Cut Diamonds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMarkings\u003c\/th\u003e\n\u003ctd\u003eEmbossed carat sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eFrance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580684599510,"sku":"135.563","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/diamond-gauge-for-round-shapes-01-point-to-4-carat-sizes-otto-frei.jpg?v=1719958036"},{"product_id":"round-diamond-carat-gauge-1pt-4ct-stainless-rectangular-france","title":"Diamond Gauge For Rounds 1 Point To 4 Carats-Rectangular Sha","description":"\u003cp\u003eThis rectangular stainless steel gauge is precision-engineered for measuring the carat sizes of round brilliant cut diamonds. Featuring precision-drilled holes, it provides accurate measurements spanning from 0.01 point (1 point) up to 4 carats, making it an essential reference tool for jewelers, gemologists, and bench professionals who work with round brilliant cut stones.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrecision-drilled holes for accurate carat-size measurement of round brilliant cut diamonds\u003c\/li\u003e\n\u003cli\u003eMeasures from 0.01 point (1 point) to 4 carats\u003c\/li\u003e\n\u003cli\u003eRectangular shape for easy handling and bench use\u003c\/li\u003e\n\u003cli\u003eHigh-quality stainless steel construction for durability and long service life\u003c\/li\u003e\n\u003cli\u003eMade in France\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eRectangular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e0.01 point (1 point) – 4 carats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Type\u003c\/th\u003e\n\u003ctd\u003eRound Brilliant Cut Diamonds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eFrance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580685123798,"sku":"135.564","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/diamond-gauge-for-rounds-1-point-to-4-carats-rectangular-sha-otto-frei.jpg?v=1719958035"},{"product_id":"diamond-pearl-gauge-plastic-card","title":"Diamond \u0026 Pearl Gauge Plastic Card Type","description":"\u003cp\u003eThe Diamond \u0026amp; Pearl Gauge is a practical plastic card-style measuring tool designed for jewelers who need quick, accurate size and weight references for both diamonds and pearls. Compact and easy to keep at the bench, this combination gauge features clearly marked holes on both sides for fast identification without the need for a scale or loupe calculation.\u003c\/p\u003e\n\n\u003cp\u003eOne side displays diamond sizes ranging from \u003cstrong\u003e1\/64 ct to 6 carats\u003c\/strong\u003e and pearl sizes from \u003cstrong\u003e1\/2 to 40\u003c\/strong\u003e, allowing you to visually match stones and pearls by size in familiar units. Flip the card over, and the reverse side provides \u003cstrong\u003emetric carat weights\u003c\/strong\u003e for the diamond holes and \u003cstrong\u003emetric grain weights\u003c\/strong\u003e for the pearl holes, giving you a complete dual-reference tool in a single lightweight card.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCombination diamond and pearl gauge in a convenient plastic card format\u003c\/li\u003e\n  \u003cli\u003eDiamond size markings from 1\/64 ct to 6 carats\u003c\/li\u003e\n  \u003cli\u003ePearl size markings from 1\/2 to 40\u003c\/li\u003e\n  \u003cli\u003eReverse side displays metric carat weights for diamond holes\u003c\/li\u003e\n  \u003cli\u003eReverse side displays metric grain weights for pearl holes\u003c\/li\u003e\n  \u003cli\u003eCompact card design ideal for bench use or on-the-go reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eDiamond Range\u003c\/th\u003e\n\u003ctd\u003e1\/64 ct – 6 carats\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003ePearl Size Range\u003c\/th\u003e\n\u003ctd\u003e1\/2 – 40\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eReverse Side – Diamond\u003c\/th\u003e\n\u003ctd\u003eMetric carat weights\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eReverse Side – Pearl\u003c\/th\u003e\n\u003ctd\u003eMetric grain weights\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eFormat\u003c\/th\u003e\n\u003ctd\u003eCard type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580686172374,"sku":"135.566","price":3.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/diamond-and-pearl-gauge-plastic-card-type-otto-frei.jpg?v=1719958036"},{"product_id":"orientation-gauge-acrylic-2-5x3-25-etched-grid","title":"Orientation Gauge","description":"\u003cp\u003eThe Otto Frei Jewelers Orientation Gauge was developed with goldsmith Doug Zaruba to make layout and symmetry checks fast and repeatable at the bench. Use it to find centers, set precise angles, and verify straightness like a machinist's square. Clear acrylic with an etched 2.5 mm grid lets you see the work while you align. Small rubber feet grip smooth surfaces for stable scribing and measuring. Made in the USA.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFind centers, lay out angles, and check symmetry and squareness\u003c\/li\u003e\n  \u003cli\u003eClear acrylic with etched 2.5 mm grid for visibility and accuracy\u003c\/li\u003e\n  \u003cli\u003eWorks like a machinist's square for quick accuracy checks\u003c\/li\u003e\n  \u003cli\u003eNon-slip rubber feet keep the gauge steady on smooth benches and plates\u003c\/li\u003e\n  \u003cli\u003eDesigned with famed goldsmith Doug Zaruba; made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eOverall Size\u003c\/th\u003e\n\u003ctd\u003e2-1\/2 in × 3-1\/4 in (63.5 × 82.6 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eClear acrylic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eGrid\u003c\/th\u003e\n\u003ctd\u003eEtched, 2.5 mm squares\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eFeet\u003c\/th\u003e\n\u003ctd\u003eSmall rubber feet for slip resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eLayout, centering, angle marking, symmetry and squareness checks\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWipe clean with a soft cloth. Avoid abrasive cleaners that can haze acrylic.\u003c\/li\u003e\n  \u003cli\u003eStore flat to keep the edges true.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580758753494,"sku":"135.100","price":46.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/orientation-gauge-otto-frei.jpg?v=1719958006"},{"product_id":"brass-slide-gauge-stone-table-80mm","title":"Brass Slide Gauge 0.01mm to 80.00mm With Stone Table","description":"\u003cp\u003eAn innovative measuring gauge designed specifically for the challenges of jeweler's bench work. The Brass Slide Gauge features a built-in metal stone table — an under-plate that holds small stones and small parts in place while you measure, eliminating the frustration of trying to grip tiny objects with one hand while reading a gauge with the other. Simply place the stone or part on the plate and slide to a fast, accurate reading. The gauge handles the full range of everyday bench measurements as well, making it a versatile addition to any jeweler's or gemologist's workspace.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated metal stone table (under-plate) holds stones and small parts steady during measurement\u003c\/li\u003e\n\u003cli\u003eSmooth brass slide action for quick, repeatable readings\u003c\/li\u003e\n\u003cli\u003eMeasures from 0.01 mm up to 80.00 mm (approximately 3\")\u003c\/li\u003e\n\u003cli\u003eSuitable for stones, small components, and general bench measurements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e0.01 mm – 80.00 mm (approx. 3\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGraduation\u003c\/th\u003e\n\u003ctd\u003e0.01 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncludes Stone Table\u003c\/th\u003e\n\u003ctd\u003eYes — integrated metal under-plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eEurotool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65:\u003c\/strong\u003e This product is subject to California Prop 65 warnings. It may contain lead or other chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.\u003c\/p\u003e","brand":"Eurotool","offers":[{"title":"Default Title","offer_id":43580760752342,"sku":"135.157","price":7.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/brass-slide-gauge-0-01mm-to-80-00mm-with-stone-table-otto-frei.jpg?v=1719958006"},{"product_id":"brass-sliding-gauge-0-01-80mm","title":"Brass Sliding Gauge-0.01mm to 80.00mm \u0026 1\/16\" to 3-1\/4\"","description":"\u003cp\u003eA reliable pocket-size brass sliding gauge found on jewelers' benches around the world. This classic sliding caliper measures from \u003cstrong\u003e0.01 mm to 80.00 mm\u003c\/strong\u003e and from \u003cstrong\u003e1\/16\" to 3-1\/4\"\u003c\/strong\u003e in inches, giving bench jewelers, metalsmiths, and goldsmiths a simple, dual-scale measuring tool for everyday use. Compact enough to keep at the bench and straightforward enough to pick up and use immediately.\u003c\/p\u003e\u003cp\u003eMillimeter detail measurements are obtained by using the lower unmarked 10 graduations near the jaws. Measurement to 0.01 mm is obtained by matching the first bottom graduation with the single graduation line directly above that graduation mark.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual-scale measurement in both millimeters and inches\u003c\/li\u003e\n\u003cli\u003eMillimeter range: 0.01 mm – 80.00 mm\u003c\/li\u003e\n\u003cli\u003eInch range: 1\/16\" – 3-1\/4\"\u003c\/li\u003e\n\u003cli\u003eFine 0.01 mm resolution via vernier-style lower graduation scale\u003c\/li\u003e\n\u003cli\u003ePocket-size form factor — ideal for the jeweler's bench\u003c\/li\u003e\n\u003cli\u003eSimple and easy to use with no setup required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range (mm)\u003c\/th\u003e\n\u003ctd\u003e0.01 mm – 80.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range (inches)\u003c\/th\u003e\n\u003ctd\u003e1\/16\" – 3-1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGraduation Resolution\u003c\/th\u003e\n\u003ctd\u003e0.01 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eThis product is subject to California Proposition 65 warnings regarding lead exposure.\u003c\/li\u003e\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580763078870,"sku":"135.158","price":8.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/value-line-brass-sliding-gauge-otto-frei.jpg?v=1719958003"},{"product_id":"solid-plastic-ring-stick-usa-sizes-1-13","title":"Solid Plastic Ring Stick - USA Standard Sizes 1-13","description":"\u003cp\u003eA straightforward, economical solution for checking ring sizes at the bench, this solid plastic ring stick is graduated in USA standard sizes 1 through 13. Designed for everyday use in jewelry shops and at the workbench, it provides a reliable reference for sizing rings quickly and accurately without investing in a metal mandrel.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGraduated USA standard ring sizes 1–13\u003c\/li\u003e\n\u003cli\u003eSolid plastic construction for lightweight, economical everyday use\u003c\/li\u003e\n\u003cli\u003eClear size markings for fast, easy reference\u003c\/li\u003e\n\u003cli\u003ePractical bench tool for jewelers and jewelry retailers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003eUSA Standard Sizes 1–13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSolid plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580763766998,"sku":"135.288","price":4.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/solid-plastic-ring-stick-usa-standard-sizes-1-13-otto-frei.jpg?v=1719958003"},{"product_id":"stainless-steel-6-inch-ruler-150mm","title":"Steel 6 Inch (150mm) Ruler","description":"\u003cp\u003eA reliable bench reference for everyday measurement tasks, this stainless steel ruler is an essential tool for jewelers, metalsmiths, and watchmakers. One side features dual-scale graduations running to 6 inches and 150mm, making it easy to switch between imperial and metric readings without changing tools. Flip it over and you have a compact reference chart imprinted directly on the steel—covering inch-to-metric conversions, fraction-to-decimal equivalents, Tap Drill data, and W.W. UNF threading information. At 0.80mm thick, it lies flat on the bench without flexing under light pressure.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual-scale graduations: inches (to 6\") and metric (to 150mm) on one side\u003c\/li\u003e\n\u003cli\u003eReverse side imprinted with inch-to-metric conversion table\u003c\/li\u003e\n\u003cli\u003eFraction-to-decimal equivalent reference chart on reverse\u003c\/li\u003e\n\u003cli\u003eTap Drill information imprinted on reverse side\u003c\/li\u003e\n\u003cli\u003eW.W. UNF threading reference imprinted on reverse side\u003c\/li\u003e\n\u003cli\u003eConstructed from stainless steel at 0.80mm thickness\u003c\/li\u003e\n\u003cli\u003eFlat profile stays stable on the bench surface\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e0.80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e6 inches \/ 150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScale – Side A\u003c\/th\u003e\n\u003ctd\u003eInches (to 6\") and millimeters (to 150mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScale – Side B\u003c\/th\u003e\n\u003ctd\u003eInch-to-metric conversions, fraction-to-decimal equivalents, Tap Drill data, W.W. UNF data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVariant Count\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580764979414,"sku":"135.510","price":3.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/steel-6-inch-150mm-ruler-otto-frei.jpg?v=1719958003"},{"product_id":"stainless-steel-jewelers-ruler-ring-bracelet-gauge","title":"Jewelers Ruler!-Otto Frei Jewelry Makers Scale","description":"\u003cp\u003eA precise, dual-purpose measuring tool built for the jewelry bench, this stainless steel ruler delivers both standard linear measurements and dedicated ring shank and bracelet gauge readings in one compact instrument. Constructed from thick yet flexible stainless steel, it holds its shape under daily bench use while remaining easy to maneuver around curved surfaces and small workpieces.\u003c\/p\u003e\n\n\u003cp\u003eOne side features metric and inch graduations, running from 0 mm to 152 mm and 0′ to 6′ respectively. Flip it over and you have a convenient ring shank and bracelet gauge measure—eliminating the need to reach for a separate tool mid-project.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThick yet flexible stainless steel construction for durability and ease of use\u003c\/li\u003e\n\u003cli\u003eMetric scale: 0 mm – 152 mm\u003c\/li\u003e\n\u003cli\u003eInch scale: 0′ – 6′\u003c\/li\u003e\n\u003cli\u003eReverse side features ring shank and bracelet gauge measure\u003c\/li\u003e\n\u003cli\u003eDual-sided layout keeps two essential references on a single tool\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMetric Range\u003c\/th\u003e\n\u003ctd\u003e0 mm – 152 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInch Range\u003c\/th\u003e\n\u003ctd\u003e0′ – 6′\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReverse Side\u003c\/th\u003e\n\u003ctd\u003eRing shank and bracelet gauge measure\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\u003ctr\u003e\n\u003cth\u003eVariant Count\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 stainless steel jeweler's ruler with dual-sided measurements\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580765798614,"sku":"135.511","price":9.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/jewelers-ruler-otto-frei-jewelry-makers-scale-otto-frei.jpg?v=1719958003"},{"product_id":"diamond-seller-gauge-round-sizes","title":"Diamond Seller Gauge for Round Sizes","description":"\u003cp\u003eThe Diamond Seller Gauge for Round Sizes is a practical selling aid designed to help jewelers and sales professionals show customers the visual difference between popular round stone sizes. Unlike precision measuring gauges, this tool is built for the sales floor—giving your customers a clear, tangible reference for round stone diameters before they commit to a purchase.\u003c\/p\u003e\n\u003cp\u003eThe gauge features 10 actual round cubic zirconia stones ranging from 0.10 point (3.00 mm) up to 2 carat (8.20 mm), allowing customers to compare sizes side by side in a real-world context. This makes it an ideal counter tool for custom orders, engagement ring consultations, and loose stone sales.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelling aid designed to demonstrate round stone sizes to customers\u003c\/li\u003e\n\u003cli\u003eFeatures 10 round cubic zirconia stones for size reference\u003c\/li\u003e\n\u003cli\u003eSize range spans 0.10 point (3.00 mm) to 2 carat (8.20 mm)\u003c\/li\u003e\n\u003cli\u003eIdeal for engagement ring consultations and custom order discussions\u003c\/li\u003e\n\u003cli\u003eProvides a tangible, visual comparison tool for the sales counter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Stones\u003c\/th\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Type\u003c\/th\u003e\n\u003ctd\u003eCubic Zirconia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSmallest Size\u003c\/th\u003e\n\u003ctd\u003e0.10 point (3.00 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLargest Size\u003c\/th\u003e\n\u003ctd\u003e2 carat (8.20 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Shape\u003c\/th\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580766388438,"sku":"135.555","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/diamond-seller-gauge-for-round-sizes-otto-frei.jpg?v=1719958003"},{"product_id":"diamond-seller-gauge-fancy-shapes","title":"Diamond Seller Gauge for Fancy Shapes","description":"\u003cp\u003eThe Diamond Seller Gauge for Fancy Shapes is a practical selling aid designed to help jewelers and gemstone retailers show customers the visual appearance of popular fancy stone shapes. Unlike traditional measuring gauges, this tool is not intended for dimensional measurement — its purpose is to provide a clear, tangible reference for customers who are selecting a stone shape for a custom or retail piece.\u003c\/p\u003e\n\n\u003cp\u003eThe gauge features one each of seven classic fancy shapes set in cubic zirconia, giving customers a realistic sense of how each shape looks when mounted or presented. This makes it an ideal counter tool for sales consultations, helping customers make confident decisions without relying solely on imagination or flat diagrams.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelling aid designed to display popular fancy stone shapes to customers\u003c\/li\u003e\n\u003cli\u003eIncludes one example each of seven shapes: emerald, oval, pear, square, round, marquise, and baguette\u003c\/li\u003e\n\u003cli\u003eStones are cubic zirconia, providing a realistic visual reference\u003c\/li\u003e\n\u003cli\u003eUseful for custom jewelry consultations and retail sales environments\u003c\/li\u003e\n\u003cli\u003eNot a dimensional measuring tool — intended strictly as a shape reference and display aid\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eShapes Included\u003c\/th\u003e\n\u003ctd\u003eEmerald, Oval, Pear, Square, Round, Marquise, Baguette\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Material\u003c\/th\u003e\n\u003ctd\u003eCubic Zirconia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Use\u003c\/th\u003e\n\u003ctd\u003eCustomer selling aid \/ shape reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e1 gauge with 7 shapes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOne Diamond Seller Gauge for Fancy Shapes containing seven cubic zirconia stones (emerald, oval, pear, square, round, marquise, and baguette)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580766650582,"sku":"135.556","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/diamond-seller-gauge-for-fancy-shapes-otto-frei.jpg?v=1719958001"},{"product_id":"baker-style-stone-mounting-gauge","title":"Stone Gauge-Baker Style","description":"\u003cp\u003eThe Baker-Style Stone Gauge is a dual-purpose measuring tool designed for professional jewelers who need to quickly and accurately size both loose stones and mountings at the bench. One face of the gauge displays millimeter measurements, while the opposite face shows the corresponding carat weight equivalents—eliminating the need to cross-reference separate charts during stone setting or evaluation.\u003c\/p\u003e\u003cp\u003eThe gauge features precisely sized holes used to measure stones by diameter, and extended tabs or prongs used to measure the inside dimensions of mountings. This two-in-one functionality makes it an efficient everyday bench reference tool for stone setters, bench jewelers, and gemologists alike.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual-function design measures both loose stones and mountings\u003c\/li\u003e\n\u003cli\u003eDrilled holes sized for measuring stones by diameter\u003c\/li\u003e\n\u003cli\u003eExtended tabs for measuring mounting dimensions\u003c\/li\u003e\n\u003cli\u003eOne side graduated in millimeters\u003c\/li\u003e\n\u003cli\u003eOpposite side displays corresponding carat weight measurements\u003c\/li\u003e\n\u003cli\u003eCompact, bench-friendly form factor for everyday use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eStyle\u003c\/th\u003e\n\u003ctd\u003eBaker Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Systems\u003c\/th\u003e\n\u003ctd\u003eMillimeters and carat weight equivalents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Function\u003c\/th\u003e\n\u003ctd\u003eStone and mounting gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVariant Count\u003c\/th\u003e\n\u003ctd\u003eSingle variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580767764694,"sku":"135.558","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/stone-gauge-baker-style-otto-frei.jpg?v=1719958000"},{"product_id":"degree-gauge-usa-adjustable-points-0-10mm-150mm","title":"Degree Gauge Made In USA With Adjustable Points 0.10 MM-15.0","description":"\u003cp\u003eA precise, professional-grade measuring tool built for the bench, this degree gauge is made in the USA from polished steel with easy-to-read brass indexes. Its adjustable points allow for flexible positioning, making it well suited for a wide range of measuring tasks. The lightweight, sensitive construction delivers accurate readings with minimal effort, whether you're checking dimensions on finished pieces or working with stock.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eConstructed from polished steel for durability and precision\u003c\/li\u003e\n\u003cli\u003eAdjustable points for versatile measuring setups\u003c\/li\u003e\n\u003cli\u003eEasy-to-read brass indexes\u003c\/li\u003e\n\u003cli\u003eLightweight and sensitive design for refined bench work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd\u003e0.10 mm (1\/10 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolished steel with brass indexes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePoints\u003c\/th\u003e\n\u003ctd\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eMade in USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Grobet USA","offers":[{"title":"Default Title","offer_id":43580846702806,"sku":"135.018","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/degree-gauge-made-in-usa-with-adjustable-points-0-10-mm-15-0-otto-frei.jpg?v=1719957942"},{"product_id":"protractor-gauge-basic","title":"Protractor Gauge Basic","description":"\u003cp\u003eThe Protractor Gauge Basic is an economy bevel protractor designed for general-purpose angle measurement at the jeweler's bench. Ideal for metalsmiths and bench jewelers who need a reliable, straightforward tool for checking and transferring angles without the investment of a precision instrument.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEconomy bevel protractor for everyday bench use\u003c\/li\u003e\n\u003cli\u003eDesigned for general-purpose angle measurement\u003c\/li\u003e\n\u003cli\u003ePractical and accessible option for budget-conscious professionals\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580848767190,"sku":"135.072","price":17.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/protractor-gauge-basic-otto-frei.jpg?v=1719957942"},{"product_id":"jewelers-dividers-3-inch","title":"Jewelers Dividers 3\"","description":"\u003cp\u003eThese 3\" (75mm) jewelers dividers are a reliable bench tool for measuring distances between two points, transferring measurements to metal, and scribing circles or arcs. Also known as a compass gauge, this style features sharp steel points that perform excellently when scribing non-ferrous metals and soft steel. The spring-tension design includes a quick-change adjuster for fast, precise opening and closing of the legs.\u003c\/p\u003e\n\n\u003cp\u003eBuilt with thicker legs than more expensive premium alternatives, these dividers are notably sturdy and well-suited to hard daily use at the bench. Crafted from hardened tool steel in Poland, they deliver professional-grade performance at a practical price point. The 3\" measurement refers to the leg length measured from the bottom of the tension coil spring—the overall length of the tool is longer.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures distances between points and transfers measurements to metal workpieces\u003c\/li\u003e\n\u003cli\u003eSharp steel points ideal for scribing circles, arcs, and layout lines\u003c\/li\u003e\n\u003cli\u003eSpring-action design with quick-change adjuster for rapid leg adjustment\u003c\/li\u003e\n\u003cli\u003eThicker, sturdier legs compared to premium versions—built for hard bench use\u003c\/li\u003e\n\u003cli\u003eSuitable for scribing non-ferrous metals and soft steel\u003c\/li\u003e\n\u003cli\u003eAlso functions as a compass gauge for layout work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eLeg Length\u003c\/th\u003e\n\u003ctd\u003e3\" (75mm), measured from the bottom of the tension coil spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHardened tool steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003ePoland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe 3\" leg length is measured from the bottom of the tension coil spring. The overall length of the dividers—including the spring mechanism and adjustment screw—is greater than 3\".\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580850045142,"sku":"135.075A","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/jewelers-dividers-3-otto-frei.jpg?v=1719957941"},{"product_id":"starrett-3in-jewelers-dividers-usa","title":"Starrett 3\" Jewelers Dividers-Made in the USA","description":"\u003cp\u003eThe Starrett 3\" Jewelers Dividers are precision instruments built for jewelers, toolmakers, and skilled mechanics who demand accurate, consistent performance at the bench. Crafted from polished ground tool steel and made in the USA, these dividers deliver the refined balance and smooth adjustment that serious craftspeople expect from a professional-grade layout tool.\u003c\/p\u003e\n\n\u003cp\u003eStarrett has engineered every detail of these dividers to minimize play, prevent deflection, and maintain precise settings through repeated use — making them the benchmark for quality in jewelers' dividers.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge bearing surfaces\u003c\/strong\u003e on the legs prevent side deflection during use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong, flexible bow spring\u003c\/strong\u003e maintains consistent tension and control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrally located adjustment\u003c\/strong\u003e within the legs ensures smooth, reliable action\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardened fulcrum stud\u003c\/strong\u003e for long-lasting durability and precise pivoting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolished ground tool steel\u003c\/strong\u003e construction throughout\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in the USA\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eLeg Length\u003c\/th\u003e\n\u003ctd\u003e3\" (75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003e4\" (104 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolished ground tool steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580854337750,"sku":"135.084","price":112.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/starrett-3-jewelers-dividers-made-in-the-usa-otto-frei.jpg?v=1719957940"},{"product_id":"jewelers-divider-4-inch","title":"Jewelers Divider 4\"","description":"\u003cp\u003eJewelers dividers are essential bench tools for measuring distances between two points and transferring that measurement precisely to another piece of metal. Also known as a compass gauge, these dividers are equally suited for scribing circles and arcs on a wide range of materials. The sharp steel points perform excellently on non-ferrous metals and soft steel.\u003c\/p\u003e\u003cp\u003eThis 4\" model features spring action with a quick-change adjuster that allows for fast, smooth opening and closing of the legs. Crafted from hardened tool steel in Poland, these dividers deliver the rigidity and precision that professional jewelers and metalsmiths demand at the bench.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMeasures and transfers distances between points with precision\u003c\/li\u003e\n\u003cli\u003eScribes clean circles and arcs on non-ferrous metals and soft steel\u003c\/li\u003e\n\u003cli\u003eSharp hardened tool steel points for accurate marking\u003c\/li\u003e\n\u003cli\u003eSpring action design with quick-change adjuster for rapid leg adjustment\u003c\/li\u003e\n\u003cli\u003eLeg length of 4\" measured from the bottom of the tension circle spring\u003c\/li\u003e\n\u003cli\u003eOverall length: 5–3\/4\"\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHardened tool steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLeg Length\u003c\/th\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003e5–3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003ePoland\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAlso Known As\u003c\/th\u003e\n\u003ctd\u003eCompass gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580855779542,"sku":"135.086","price":24.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/jewelers-divider-4-otto-frei.jpg?v=1719957941"},{"product_id":"jewelers-divider-black-body-3in","title":"Jewelers Divider-Black Body 3\"","description":"\u003cp\u003eThese jewelers dividers feature a 3\" black body design built for precision layout and marking work on the bench. Used to measure distances between two points and transfer that measurement accurately to another piece of metal, they are equally suited for scribing circles and arcs — a function that earns them the alternate name \u003cem\u003ecompass gauge\u003c\/em\u003e. The sharp hardened steel points scribe cleanly in non-ferrous metals and soft steel, making them a reliable choice for layout tasks throughout the fabrication process.\u003c\/p\u003e\u003cp\u003eThe spring-action mechanism combined with a quick-change adjuster allows the legs to open and close rapidly without losing the set measurement, improving workflow efficiency. Fine adjustment is made via a knurled nut threaded onto a rod, giving the user controlled, repeatable settings. Constructed from hardened tool steel, these dividers offer solid performance at an accessible price point — well suited for students and those new to the jewelry trade.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for measuring point-to-point distances and transferring dimensions to metal stock\u003c\/li\u003e\n\u003cli\u003eScribes circles and arcs — also known as a compass gauge\u003c\/li\u003e\n\u003cli\u003eSharp hardened steel points scribe in non-ferrous metals and soft steel\u003c\/li\u003e\n\u003cli\u003eSpring-action legs with quick-change adjuster for fast opening and closing\u003c\/li\u003e\n\u003cli\u003eFine adjustment via knurled nut on a threaded rod for precise, repeatable settings\u003c\/li\u003e\n\u003cli\u003eLegs measure 3\" from the bottom of the tension circle spring\u003c\/li\u003e\n\u003cli\u003eOverall length: 4–3\/4\"\u003c\/li\u003e\n\u003cli\u003eWell suited for students and beginners to the jewelry trade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eLeg Length\u003c\/th\u003e\n\u003ctd\u003e3\" (measured from bottom of tension circle spring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003e4–3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHardened tool steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBody Color\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAdjustment Type\u003c\/th\u003e\n\u003ctd\u003eKnurled nut on threaded rod\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAction\u003c\/th\u003e\n\u003ctd\u003eSpring-action with quick-change adjuster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580856402134,"sku":"135.092","price":6.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/jewelers-divider-black-body-3-otto-frei.jpg?v=1719957941"},{"product_id":"ring-finger-gauge-set-sizes-1-15-usa-standard-29-piece","title":"Ring Finger Gauge Sizes 1-15 USA Standard","description":"\u003cp\u003eA complete set of ring finger gauges in USA standard sizes, this tool features a square edge design with a \u003cstrong\u003e\"D\" shaped holder\u003c\/strong\u003e for easy handling at the bench. The set covers sizes 1 through 15, including half sizes, giving you \u003cstrong\u003e29 individual rings\u003c\/strong\u003e in a single convenient holder — everything you need to accurately size customers across the full range of common USA ring sizes.\u003c\/p\u003e\u003cp\u003eHalf sizes are clearly marked with a minus sign (–) for quick identification. For example, size 6½ is labeled \u003cstrong\u003e6–\u003c\/strong\u003e on the ring, making it simple to read at a glance.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSquare edge ring gauges for accurate USA standard sizing\u003c\/li\u003e\n\u003cli\u003e\"D\" shaped holder keeps all rings organized and accessible\u003c\/li\u003e\n\u003cli\u003eCovers sizes 1 through 15, including half sizes\u003c\/li\u003e\n\u003cli\u003e29 individual rings in a single set\u003c\/li\u003e\n\u003cli\u003eHalf sizes marked with a minus sign (–) for clear identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1–15 (USA Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncludes Half Sizes\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Ring Count\u003c\/th\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRing Edge Style\u003c\/th\u003e\n\u003ctd\u003eSquare edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHolder Style\u003c\/th\u003e\n\u003ctd\u003e\"D\" shaped\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Standard\u003c\/th\u003e\n\u003ctd\u003eUSA Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e29 ring gauges (sizes 1–15 with half sizes) on a \"D\" shaped holder\u003c\/li\u003e\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580857090262,"sku":"135.256","price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/ring-finger-gauge-sizes-1-15-usa-standard-otto-frei.jpg?v=1719957941"},{"product_id":"bergeon-5236c-ring-finger-gauge","title":"Bergeon 5236-C Swiss-Made Hi Precision Ring Finger Gauge","description":"\u003cp\u003eThe Bergeon 5236-C is a professional-grade ring finger gauge set engineered for precision sizing across an exceptionally broad range. Constructed from high-impact durable plastic with color-coded rings for quick visual reference, this Swiss-made tool delivers reliable results at the bench. Each gauge displays dual measurement systems on opposite sides, making it equally useful for working with clients and for technical ring sizing tasks.\u003c\/p\u003e\u003cp\u003eOne side is marked with USA sizes 1 through 15 alongside diameter measurements in millimeters (13–24.2 mm). The reverse side displays French sizes 1 through 36 alongside circumference measurements in millimeters (41–76 mm). This dual-sided format eliminates guesswork when communicating across different sizing standards.\u003c\/p\u003e\u003cp\u003eWhat sets this set apart is its expanded range: 36 individual ring sizes instead of the typical 30. The seven additional sizes — 3, 5, 7, 8, 10, 12, and 13 — fill in gaps commonly missing from standard sets, ensuring accurate sizing for a wider range of customers and ring styles.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e36 individual ring gauges — 6 more than standard 30-piece sets\u003c\/li\u003e\n\u003cli\u003eExtra sizes included: 3, 5, 7, 8, 10, 12, and 13\u003c\/li\u003e\n\u003cli\u003eColor-coded rings for fast, at-a-glance identification\u003c\/li\u003e\n\u003cli\u003eDual-sided markings: USA sizes and mm diameter on one side; French sizes and mm circumference on the other\u003c\/li\u003e\n\u003cli\u003eHigh-impact durable plastic construction\u003c\/li\u003e\n\u003cli\u003eSwiss made by Bergeon\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eBergeon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e5236-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eSwiss Made\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh-impact durable plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Sizes\u003c\/th\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUSA Size Range\u003c\/th\u003e\n\u003ctd\u003e1–15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range (mm)\u003c\/th\u003e\n\u003ctd\u003e13–24.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFrench Size Range\u003c\/th\u003e\n\u003ctd\u003e1–36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircumference Range (mm)\u003c\/th\u003e\n\u003ctd\u003e41–76 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor Coding\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Bergeon","offers":[{"title":"Default Title","offer_id":43580859973846,"sku":"135.269","price":62.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/bergeon-5236c-swiss-made-hi-precision-ring-finger-gauge-otto-frei.jpg?v=1719957937"},{"product_id":"jo-di-diamond-gauge-book","title":"Jo-Di Diamond Gauge W\/Book","description":"\u003cp\u003eThe Jo-Di Diamond Gauge with Book allows professional jewelers to accurately estimate the estimated weight of a diamond without removing the stone from its mounting. Using measured width and depth values referenced against the included book, this gauge supports calculations for both round and fancy diamond shapes — making it an efficient tool for appraisers, bench jewelers, and estate jewelry professionals who need reliable weight estimates without the risk of damage or loss during removal.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEstimates diamond weight without removing the stone from its setting\u003c\/li\u003e\n\u003cli\u003eWidth and depth measurements are referenced in the included table book\u003c\/li\u003e\n\u003cli\u003eCompatible with round diamond shapes\u003c\/li\u003e\n\u003cli\u003eCompatible with fancy diamond shapes\u003c\/li\u003e\n\u003cli\u003eDesigned for use by professional jewelers and appraisers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJo-Di Diamond Gauge\u003c\/li\u003e\n\u003cli\u003eReference book with width and depth measurement tables\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580860858582,"sku":"135.551","price":81.05,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/jo-di-diamond-gauge-wbook-otto-frei.jpg?v=1719957937"},{"product_id":"metric-stainless-steel-dial-caliper-150mm","title":"Metric Stainless Steel Dial Caliper 0-150MM","description":"\u003cp\u003eA reliable mechanical measuring tool for the professional bench, this metric stainless steel dial caliper delivers precise readings across a 0–150 mm range without ever requiring a battery. The smooth mechanical dial action and adjustable zero-set dial make it a dependable choice for jewelers, metalsmiths, and watchmakers who demand accuracy in their daily measurements. A carrying case is included for safe storage and transport.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMechanical dial action — no battery required\u003c\/li\u003e\n\u003cli\u003e0–150 mm measurement capacity\u003c\/li\u003e\n\u003cli\u003eAdjustable zero-set dial for accurate readings\u003c\/li\u003e\n\u003cli\u003eStainless steel construction\u003c\/li\u003e\n\u003cli\u003eCarrying case included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e0–150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Source\u003c\/th\u003e\n\u003ctd\u003eNone — mechanical dial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580901654742,"sku":"135.005","price":75.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/metric-stainless-steel-dial-caliper-0-150mm-otto-frei.jpg?v=1719957925"},{"product_id":"machinist-square-70mm-50mm","title":"Machinist Square 70mm X 50mm (2 Inch)","description":"\u003cp\u003eA machinist square is the metalworker's equivalent of a woodworker's try square. The term \u003cem\u003esquare\u003c\/em\u003e refers to the tool's primary use: measuring the accuracy of a right angle (90 degrees). To \u003cem\u003etry\u003c\/em\u003e a surface is to check its straightness or its correspondence to an adjoining surface—making this an essential bench tool for jewelers, metalsmiths, and machinists who require precise 90-degree references during layout, fabrication, and inspection work.\u003c\/p\u003e\u003cp\u003eA small notch has been added to the inside corner of the square to prevent fine particles from accumulating and affecting the tool's reading, ensuring consistent accuracy even in a working bench environment.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMeasures and verifies right angles (90 degrees) with precision\u003c\/li\u003e\n\u003cli\u003eInside-corner notch prevents particle buildup that could skew readings\u003c\/li\u003e\n\u003cli\u003eCompact size is well suited for jewelry bench, metalsmithing, and watchmaking applications\u003c\/li\u003e\n\u003cli\u003e50mm (2\") foot length provides a stable reference base\u003c\/li\u003e\n\u003cli\u003e70mm (2.75\") standing height for versatile use across workpiece sizes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFoot Length\u003c\/th\u003e\n\u003ctd\u003e50mm (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e70mm (2.75\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Use\u003c\/th\u003e\n\u003ctd\u003eChecking and measuring 90-degree right angles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInside Corner\u003c\/th\u003e\n\u003ctd\u003eNotched to prevent particle accumulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580902211798,"sku":"135.070","price":5.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/machinist-square-70mm-x-50mm-2-inch-otto-frei.jpg?v=1719957925"},{"product_id":"mark-a-size-ring-scribe-sizing-tool","title":"Mark-A-Size Ring Scribe Sizing Tool","description":"\u003cp\u003e\u003cstrong\u003eMark-A-Size\u003c\/strong\u003e is the genuine patented ring scribe sizing tool designed to help jewelers accurately mark cutting lines when reducing ring sizes — eliminating costly errors before they happen. With 12 graduated quarter-size increments ranging from \u003cstrong\u003e1\/4 to 3\u003c\/strong\u003e, you can confidently mark and cut the correct size every time.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine patented Mark-A-Size design — not a cheap imitation\u003c\/li\u003e\n\u003cli\u003eAccurately scribes cutting lines for ring size reductions\u003c\/li\u003e\n\u003cli\u003e12 sizes graduated in quarter increments from 1\/4 to 3\u003c\/li\u003e\n\u003cli\u003eHardened steel construction with sharp, precise edges\u003c\/li\u003e\n\u003cli\u003eFan-folds when not in use to protect edges and extend tool life\u003c\/li\u003e\n\u003cli\u003eReduces sizing errors for cleaner, more professional results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1\/4 – 3 ring sizes (quarter increments)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Gradations\u003c\/th\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eHardened steel with sharp edges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eFan-folds for compact, edge-protected storage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVariants\u003c\/th\u003e\n\u003ctd\u003eSingle option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThis is the genuine patented Mark-A-Size tool. Beware of inaccurate, poorly made copies available elsewhere on the market. Only the authentic version delivers the precision and durability required for professional bench work.\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580902572246,"sku":"135.0705","price":47.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/mark-a-size-ring-scribe-sizing-tool-otto-frei.jpg?v=1719957923"},{"product_id":"machinist-square-3-inch-95mm-x-75mm","title":"Machinist Square 3\" (95 mm X 75 mm)","description":"\u003cp\u003eA machinist square is the metalworker's equivalent of a woodworker's try square. The term \u003cem\u003esquare\u003c\/em\u003e refers to the tool's primary use: measuring the accuracy of a right angle (90 degrees). To \u003cem\u003etry\u003c\/em\u003e a surface is to check its straightness or its correspondence to an adjoining surface—a fundamental task in precision metalworking, benchwork, and fabrication.\u003c\/p\u003e\u003cp\u003eThis 3\" machinist square measures 95 mm x 75 mm and features a small notch cut into the inside corner. This notch prevents fine particles and debris from accumulating at the corner junction, which could otherwise lift the square off the workpiece and compromise the accuracy of the reading.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChecks and verifies 90-degree right angles on metal workpieces and surfaces\u003c\/li\u003e\n\u003cli\u003eInside corner notch prevents particle buildup that could affect measurement accuracy\u003c\/li\u003e\n\u003cli\u003eCompact 3\" size suited for benchwork and detail-oriented metalsmithing tasks\u003c\/li\u003e\n\u003cli\u003eFunctions as a try square for checking surface straightness and adjoining surface correspondence\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBlade Length\u003c\/th\u003e\n\u003ctd\u003e95 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStock Length\u003c\/th\u003e\n\u003ctd\u003e75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Size\u003c\/th\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAngle\u003c\/th\u003e\n\u003ctd\u003e90 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVariants\u003c\/th\u003e\n\u003ctd\u003eSingle configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eKeep the square clean and free of debris, particularly at the inside corner, to maintain accurate readings.\u003c\/li\u003e\n\u003cli\u003eHandle with care—dropping or impacting the square against hard surfaces may alter its calibration.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580923281622,"sku":"135.0703","price":6.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/machinist-square-3-95-mm-x-75-mm-otto-frei.jpg?v=1719957885"},{"product_id":"bevel-protractor-european-made","title":"Bevel Protractor-European Made","description":"\u003cp\u003eA precision instrument built for exacting angular measurement, this bevel protractor delivers reliable, repeatable degree settings with smooth, controlled movement. Crafted to European manufacturing standards, it is extremely well made and engineered to move easily and accurately to any required degree setting—making it a dependable choice for jewelers, metalsmiths, and bench technicians who demand precision in layout and measurement work.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMoves smoothly and accurately to an exact degree setting\u003c\/li\u003e\n\u003cli\u003eExtremely well-made construction for lasting durability and reliable performance\u003c\/li\u003e\n\u003cli\u003eBuilt to European manufacturing standards\u003c\/li\u003e\n\u003cli\u003eSuitable for precise angular measurement tasks at the jeweler's bench\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eBevel Protractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturing Origin\u003c\/th\u003e\n\u003ctd\u003eEuropean Made\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580923445462,"sku":"135.073","price":37.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/bevel-protractor-european-made-otto-frei.jpg?v=1719957885"},{"product_id":"ring-finger-gauge-square-edge-usa-standard","title":"Ring Finger Gauge Square Edge 1-15 USA Standard","description":"\u003cp\u003eA reliable staple for any jeweler's bench, this USA Standard Ring Finger Gauge set provides accurate, at-a-glance sizing across the full range of common ring sizes. The set includes 29 individual rings spanning sizes 1 through 15, including half sizes, making it suitable for everyday customer fittings and professional sizing work.\u003c\/p\u003e\u003cp\u003eEach ring is clearly marked on one side with its USA standard size. Half sizes are indicated using a minus sign — for example, size 6½ is marked as \u003cem\u003e6-\u003c\/em\u003e. The reverse side of each ring displays the corresponding inside diameter in millimeters, so you can cross-reference USA sizes with metric measurements instantly. Size 6½, for instance, is marked \u003cem\u003e16.9\u003c\/em\u003e for a 16.9 mm inside diameter.\u003c\/p\u003e\u003cp\u003eThe square-edge profile of these gauges reflects standard ring construction, providing a more accurate fit reference compared to comfort-fit or rounded-edge alternatives. This is an essential bench tool for jewelers, bench technicians, and retail staff who need dependable sizing results in a durable, easy-to-use format.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e29 individual rings covering USA standard sizes 1 through 15\u003c\/li\u003e\n\u003cli\u003eIncludes all half sizes within the range\u003c\/li\u003e\n\u003cli\u003eHalf sizes indicated with a minus sign (e.g., 6½ = \u003cem\u003e6-\u003c\/em\u003e)\u003c\/li\u003e\n\u003cli\u003eReverse side of each ring stamped with inside diameter in millimeters\u003c\/li\u003e\n\u003cli\u003eSquare-edge profile for standard ring sizing reference\u003c\/li\u003e\n\u003cli\u003eDual-marked for quick USA-to-metric cross-reference\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1–15 (USA Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncrements\u003c\/th\u003e\n\u003ctd\u003eFull and half sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Rings\u003c\/th\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Marking System\u003c\/th\u003e\n\u003ctd\u003eUSA Standard; half sizes marked with minus sign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSecondary Marking\u003c\/th\u003e\n\u003ctd\u003eInside diameter in millimeters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProfile\u003c\/th\u003e\n\u003ctd\u003eSquare edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e29 individual ring finger gauges, sizes 1–15 (USA Standard, full and half sizes)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580923576534,"sku":"135.260","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/ring-finger-gauge-square-edge-1-15-usa-standard-otto-frei.jpg?v=1719957885"},{"product_id":"bracelet-wrist-gauge-sizes-1-9","title":"Bracelet Wrist Gauge-Small Wrist Sizes 1-9","description":"\u003cp\u003eThese round bracelet wrist gauges are designed for checking the minimum size a hand will need to slip on a round bangle bracelet. Each gauge features nine rings made of heavy-gauge base metal with a nickel-plated finish, securely attached to a 2-3\/4\" diameter ring for safe keeping and organized storage.\u003c\/p\u003e\n\n\u003cp\u003eIndia standard size numbers are stamped on one side of each individual bracelet ring, with the metric diameter number marked on the opposite side. Inch diameter is not marked on the rings but is provided in the size chart below.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNine rings per gauge covering small wrist sizes 1–9\u003c\/li\u003e\n\u003cli\u003eIndia standard size numbers stamped on one face of each ring\u003c\/li\u003e\n\u003cli\u003eMetric diameter numbers stamped on the reverse face\u003c\/li\u003e\n\u003cli\u003eHeavy-gauge base metal construction with nickel-plated finish\u003c\/li\u003e\n\u003cli\u003eAll rings securely attached to a 2-3\/4\" keeper ring\u003c\/li\u003e\n\u003cli\u003eAccurate sizing reference for round bangle bracelet fitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSizes Included\u003c\/th\u003e\n\u003ctd\u003e1–9 (India standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Rings\u003c\/th\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHeavy-gauge base metal, nickel plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKeeper Ring Diameter\u003c\/th\u003e\n\u003ctd\u003e2-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Markings\u003c\/th\u003e\n\u003ctd\u003eIndia standard number (one side); metric diameter mm (reverse side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe individual ring sizes and their corresponding diameters are as follows:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eIndia Size\u003c\/th\u003e\n\u003cth\u003eDiameter (mm)\u003c\/th\u003e\n\u003cth\u003eDiameter (in)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e38.10 mm\u003c\/td\u003e\n\u003ctd\u003e1.50\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e39.67 mm\u003c\/td\u003e\n\u003ctd\u003e1.56\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e41.27 mm\u003c\/td\u003e\n\u003ctd\u003e1.62\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e42.84 mm\u003c\/td\u003e\n\u003ctd\u003e1.68\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e44.45 mm\u003c\/td\u003e\n\u003ctd\u003e1.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e46.02 mm\u003c\/td\u003e\n\u003ctd\u003e1.81\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e47.62 mm\u003c\/td\u003e\n\u003ctd\u003e1.87\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e49.19 mm\u003c\/td\u003e\n\u003ctd\u003e1.94\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e50.80 mm\u003c\/td\u003e\n\u003ctd\u003e2.00\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eInch diameters are not marked on the rings. To calculate bracelet circumference from diameter, multiply the diameter by pi (3.14159).\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580923642070,"sku":"135.276S","price":11.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/bracelet-wrist-gauge-small-wrist-sizes-1-9-otto-frei.jpg?v=1719957885"},{"product_id":"multisizer-plastic-ring-gauges-50-pack","title":"Multisizers-Plastic Ring Gauges-Pack of 50","description":"\u003cp\u003eThe Multisizer is an accurate and inexpensive way to measure a customer's ring size without requiring an in-store visit. Made of plastic, these ring gauges are built to last and can be handed directly to customers so they can measure their own finger size at home — making them an ideal tool for jewelers who sell online.\u003c\/p\u003e\n\n\u003cp\u003eEach Multisizer measures in whole, half, and quarter finger sizes for precise sizing. Every individual unit comes packaged in an envelope complete with instructions for use, making them ready to hand out or mail to customers right away.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate ring sizing in whole, half, and quarter sizes\u003c\/li\u003e\n\u003cli\u003eMade of durable plastic that resists wear over time\u003c\/li\u003e\n\u003cli\u003eCustomer-friendly design — give directly to clients for at-home sizing\u003c\/li\u003e\n\u003cli\u003eIdeal for jewelers offering web or remote sales\u003c\/li\u003e\n\u003cli\u003eEach unit individually packaged in an envelope with printed instructions\u003c\/li\u003e\n\u003cli\u003eCost-effective solution for professional ring sizing programs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSizing Increments\u003c\/th\u003e\n\u003ctd\u003eWhole, half, and quarter finger sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e50 individual Multisizers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003eEach unit individually enveloped with instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e50 individual plastic Multisizer ring gauges\u003c\/li\u003e\n\u003cli\u003eEach Multisizer packaged in an envelope with instructions for use\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580937240790,"sku":"135.250","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/multisizers-plastic-ring-gauges-pack-of-50-otto-frei.jpg?v=1719957877"},{"product_id":"wide-band-square-edge-ring-finger-gauge-usa-1-15","title":"Ring Finger Gauge-Wide Band Square Edge 1-15 USA Standard","description":"\u003cp\u003eA reliable ring finger gauge designed for sizing wide-band and square-edge ring styles. Standard finger gauges can undersize a customer when a wide or square-edge band is involved. This gauge is purpose-built to deliver accurate readings for those styles. The set covers sizes 1 through 15 USA Standard, including half sizes, giving you comprehensive coverage across the full range of common finger sizes.\u003c\/p\u003e\u003cp\u003eConstructed from nickel-plated brass, these 29 rings offer durability and a smooth, consistent feel for professional use at the bench or counter.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSized specifically for wide-band and square-edge ring styles\u003c\/li\u003e\n\u003cli\u003eCovers USA Standard sizes 1 through 15, including half sizes\u003c\/li\u003e\n\u003cli\u003e29 rings total for comprehensive sizing coverage\u003c\/li\u003e\n\u003cli\u003eNickel-plated brass construction for durability and smooth finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eNickel-plated brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSizing System\u003c\/th\u003e\n\u003ctd\u003eUSA Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e1–15, including half sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Rings\u003c\/th\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRing Style\u003c\/th\u003e\n\u003ctd\u003eWide band, square edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580953264342,"sku":"135.264","price":15.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/ring-finger-gauge-wide-band-square-edge-1-15-usa-standard-otto-frei.jpg?v=1719957872"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/collections\/gauges-and-calipers-otto-frei_d61e7693-1f20-4a88-ac3c-4adcc5529760.jpg?v=1776463249","url":"https:\/\/www.ottofrei.com\/collections\/jewelry-gauges-calipers-measuring-tools.oembed?page=3","provider":"Otto Frei","version":"1.0","type":"link"}