{"product_id":"vermont-gage-112121660-class-zz-plus-plug-gage-21-66mm","title":"Vermont Gage 112121660 Class Zz Plus Plug Gage 21.66mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VERMONT GAGE 112121660 is a Class ZZ Plus plug gage designed for go inspection of bored, reamed, or otherwise machined holes with a nominal diameter of 21.66 mm. Manufactured from tool steel with a 10 micro finish, this gage provides a tolerance of 0.00508 mm, meeting the dimensional verification requirements set out in ASME B89.1. Each unit ships with a Certificate of Accuracy that carries full NIST traceability, making it suitable for quality-controlled production environments. The overall length is 2.0000 inches. Machinists, quality technicians, and metrology professionals use this gage as part of incoming inspection, process control, and final acceptance routines.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is used in manufacturing and inspection settings where hole size must be confirmed to tight tolerances before parts proceed to the next stage of production. It is appropriate for go inspection operations alongside set micrometers, verniers, and other precision measuring devices. The 21.66 mm diameter corresponds to a specific bore size common in machined components, and the Class ZZ Plus classification indicates it falls within the tighter end of the ZZ tolerance band. Installation environments include machine shops, quality labs, and production floors in both industrial and aerospace-adjacent applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e21.66 mm nominal diameter with 0.00508 mm tolerance for precise go inspection\u003c\/li\u003e\n  \u003cli\u003eTool steel construction provides durability in repetitive gage use\u003c\/li\u003e\n  \u003cli\u003e10 micro surface finish on the gage surface for consistent contact measurement\u003c\/li\u003e\n  \u003cli\u003eIncludes Certificate of Accuracy with NIST traceability for documentation compliance\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B89.1 standards for plain plug gages\u003c\/li\u003e\n  \u003cli\u003eOverall length of 2.0000 inches suits standard gage handle configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style go plug gage for use with standard gage handle assemblies and compatible with inspection routines calling for ASME B89.1 Class ZZ Plus tooling at 21.66 mm diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages of this type are handled and used by quality technicians and machinists; no power source is required. Clean the gage and the part bore thoroughly before use to prevent false readings from contamination or burrs. Store in a protective case away from temperature extremes to maintain dimensional stability. Do not force the gage through a bore; if resistance is encountered, the hole is undersized and should be re-inspected with appropriate measuring equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 21.66 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 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\u003eWeight\u003c\/strong\u003e: 0.33 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: 10 Micro\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Go Inspection; Set Micrometers; Verniers and Other Measuring Devices\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\u003eStandards\u003c\/strong\u003e: ASME B89.1\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: 112121660\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VERMONT GAGE","offers":[{"title":"Default Title","offer_id":51733076541746,"sku":"112121660","price":22.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1cf04934d75d3eb37d973f6ea4b25c4d_7189921a-6178-4d95-ad0e-5d67cc2fc497.jpg?v=1788751145","url":"https:\/\/voomisupply.com\/products\/vermont-gage-112121660-class-zz-plus-plug-gage-21-66mm","provider":"Voomi Supply","version":"1.0","type":"link"}