{"product_id":"vermont-gage-112108420-class-zz-plus-plug-gage-8-42-mm","title":"Vermont Gage 112108420 Class Zz Plus Plug Gage 8.42 Mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VERMONT GAGE 112108420 is a Class ZZ Plus plug gage designed for precise bore and hole inspection in machine shops, quality labs, and production environments. Ground from tool steel to a 10 microfinish surface, it measures a nominal diameter of 8.42 mm with a tolerance of 0.005 mm (0.00508 mm actual). Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements under quality management systems. Metrology technicians, machinists, and quality inspectors use this type of gage to confirm whether a bored or drilled feature meets its specified limits before parts advance to the next production stage.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is suited for go-type inspection of holes nominally sized at 8.42 mm across residential, commercial, and industrial precision manufacturing applications. It is also appropriate as a reference setting master for micrometers, verniers, bore gages, and other measuring devices that require a known physical standard. The compact overall length of 2.0000 inches makes it easy to handle in tight-tolerance inspection setups. Manufactured to ASME B89.1 standards, it integrates smoothly into inspection workflows governed by that specification.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ Plus tolerance class per ASME B89.1 for go-type hole inspection\u003c\/li\u003e\n  \u003cli\u003e8.42 mm nominal diameter with 0.005 mm tolerance\u003c\/li\u003e\n  \u003cli\u003e10 microfinish surface for repeatable, low-wear measurement contact\u003c\/li\u003e\n  \u003cli\u003eTool steel construction for durability in production inspection use\u003c\/li\u003e\n  \u003cli\u003eIncludes Certificate of Accuracy with NIST traceability\u003c\/li\u003e\n  \u003cli\u003eOverall length of 2.0000 inches for compact handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a go-type plug gage for inspecting holes nominally sized at 8.42 mm. Also suitable as a setting standard for micrometers, verniers, and other measuring devices requiring a traceable physical reference.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are used by metrology technicians and machinists and require no installation in the traditional sense. Before use, clean both the gage and the part bore thoroughly to remove chips, coolant, and debris that could affect the reading or damage the gage surface. Never force a plug gage into an undersized hole, as this can damage the gage and invalidate its calibration. Store the gage in a protective case away from other tooling to preserve the ground surface and maintain traceability.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 8.42 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.005 mm (0.00508 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Finish\u003c\/strong\u003e: 10 Microfinish\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B89.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Certificate of Accuracy with NIST Traceability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VERMONT GAGE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 112108420\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VERMONT GAGE","offers":[{"title":"Default Title","offer_id":51740303851826,"sku":"112108420","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/02e4c23adefc96574e694d48b3ed338d_76e96f52-6da2-49e3-adae-4fbb2a31d4ec.jpg?v=1788824144","url":"https:\/\/voomisupply.com\/products\/vermont-gage-112108420-class-zz-plus-plug-gage-8-42-mm","provider":"Voomi Supply","version":"1.0","type":"link"}