{"product_id":"spi-19-812-7-class-zz-minus-plug-pin-gage-0-812-in","title":"Spi 19-812-7 Class Zz Minus Plug Pin Gage 0.812 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-812-7 is a Class ZZ minus plug pin gage with a nominal diameter of 0.812 inches, manufactured from steel. It is used to verify bore and hole dimensions by checking whether a machined feature falls within the required tolerance band. Class ZZ is the standard commercial-grade classification for go\/no-go inspection work in general manufacturing and quality control environments. The minus designation indicates the gage is ground to the lower boundary of the tolerance zone. With a tolerance of 0.0002 inches, this gage delivers reliable dimensional verification for production inspection tasks. Machinists, quality technicians, and tool-and-die professionals are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis pin gage is suited for inspection of drilled, reamed, or bored holes in ferrous and non-ferrous workpieces across light manufacturing, job shop, and production floor environments. It is used as a standalone go or no-go member or as part of a pin gage set program. Typical applications include incoming inspection, in-process quality checks, and final part verification where a 0.812-inch nominal bore diameter is specified on the print.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ tolerance grade for general commercial inspection use\u003c\/li\u003e\n  \u003cli\u003eMinus designation ground to the lower boundary of the tolerance zone\u003c\/li\u003e\n  \u003cli\u003e0.0002-inch tolerance for consistent dimensional verification\u003c\/li\u003e\n  \u003cli\u003e0.812-inch nominal diameter for direct bore and hole inspection\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and wear resistance in production environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Class ZZ minus plug pin gage for use in go\/no-go inspection fixtures and pin gage sets requiring a 0.812-inch nominal diameter member.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePin gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Before use, verify the gage and workpiece are at the same ambient temperature to avoid thermal expansion errors. Store in a protective case away from abrasive materials to preserve the ground surface finish. Inspection personnel should follow applicable dimensional metrology procedures per shop quality standards.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.812 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Class\u003c\/strong\u003e: Class ZZ Minus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 19-812-7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51691574427954,"sku":"19-812-7","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a044cf8fe2c4e4115b0580e10e1fe976.jpg?v=1788287188","url":"https:\/\/voomisupply.com\/products\/spi-19-812-7-class-zz-minus-plug-pin-gage-0-812-in","provider":"Voomi Supply","version":"1.0","type":"link"}