{"product_id":"vermont-gage-112121140-class-zz-plus-plug-gage-21-14mm","title":"Vermont Gage 112121140 Class Zz Plus Plug Gage 21.14mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VERMONT GAGE 112121140 is a Class ZZ Plus plug gage precision-ground to a nominal diameter of 21.14 mm with a tolerance of 0.005 mm (0.00508 mm per ASME B89.1). Machined from tool steel and finished to a 10 micro surface finish, this gage is built for repeatable go inspection of bored holes, drilled passages, and machined features. A Certificate of Accuracy with NIST traceability ships with each unit, making it ready for use in calibrated measurement environments without additional third-party certification steps. Metrology technicians, quality control inspectors, and precision machinists rely on plug gages of this class for confirming dimensional compliance on production and toolroom workpieces.\u003c\/p\u003e\n\u003cp\u003eThe 112121140 is suited for go inspection applications in manufacturing, toolroom, and quality assurance environments. At 21.14 mm diameter and an overall length of 2.0000 inches, the gage integrates with standard handle systems used in dimensional inspection workflows. It is also compatible with setting and verifying micrometers, verniers, and other comparative measuring devices where a traceable reference standard is required. Typical users include machinists, quality technicians, and calibration lab personnel working to ASME dimensional standards.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ Plus tolerance of 0.005 mm per ASME B89.1 for go inspection applications\u003c\/li\u003e\n  \u003cli\u003eTool steel construction for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003e10 micro surface finish for consistent seating and low gage wear on mating bores\u003c\/li\u003e\n  \u003cli\u003eIncludes Certificate of Accuracy with NIST traceability\u003c\/li\u003e\n  \u003cli\u003eCompatible with micrometers, verniers, and other precision measuring devices as a reference standard\u003c\/li\u003e\n  \u003cli\u003eOverall length of 2.0000 inches fits standard plug gage handle systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for go inspection of features at 21.14 mm nominal diameter. Also suitable for setting micrometers, verniers, and other measuring devices requiring a traceable dimensional reference. Fits standard plug gage handles accepting this diameter class.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion and contamination of the gaging surface. Before use, verify the gage and workpiece are at the same ambient temperature to avoid thermal expansion errors. Store the gage in its case when not in use and apply a light coat of instrument oil for long-term storage. Inspection and calibration of this gage should follow ASME B89.1 procedures and your facility quality management system.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 21.14 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.00508 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Class\u003c\/strong\u003e: ZZ Plus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.31 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Finish\u003c\/strong\u003e: 10 Micro\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\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: 112121140\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VERMONT GAGE","offers":[{"title":"Default Title","offer_id":51747615834418,"sku":"112121140","price":22.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1cf04934d75d3eb37d973f6ea4b25c4d_124288d1-95b1-4221-bbc2-3eb1d736bbf9.jpg?v=1788883511","url":"https:\/\/voomisupply.com\/products\/vermont-gage-112121140-class-zz-plus-plug-gage-21-14mm","provider":"Voomi Supply","version":"1.0","type":"link"}