{"product_id":"spi-29-472-8-class-zz-plus-plug-gage-0-472-in","title":"Spi 29-472-8 Class Zz Plus Plug Gage 0.472 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-472-8 is a Class ZZ Plus plug gage used to verify bore and hole diameters to a tight tolerance standard in machining and manufacturing environments. Built from steel, it checks a nominal diameter of 0.472 inches with a tolerance of 0.0002 inches, making it a reliable go\/no-go reference for quality control inspections. This type of gage is a standard tool in machine shops, tool rooms, and production floor inspection stations where dimensional accuracy is critical to part acceptance.\u003c\/p\u003e\n\u003cp\u003eClass ZZ Plus plug gages are commonly used in light-duty production inspection and tool room applications where bore sizing must be confirmed quickly and consistently. This gage suits verification tasks on drilled, reamed, or bored holes in metal components. Machinists, quality technicians, and tool room specialists use plug gages as part of incoming, in-process, and final inspection routines to ensure hole dimensions conform to print specifications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.472 inches for precise bore verification\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance of 0.0002 inches for consistent go\/no-go inspection\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in production and tool room use\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy handling during inspection\u003c\/li\u003e\n  \u003cli\u003eSingle-piece package quantity suited for individual workstation use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style precision measurement tool for use in standard plug gage handles and holders sized to accept 0.472-inch diameter Class ZZ plug gage members.\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 measurement error from surface contamination. Store the gage in its case when not in use to protect the precision ground surfaces. Calibration intervals should follow your facility quality management plan and applicable standards such as ASME B89.1.5. Do not force the gage into an undersized bore, as this can damage both the gage and the workpiece.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.472 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches (0.0002 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Class\u003c\/strong\u003e: ZZ Plus\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: 29-472-8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51695876768050,"sku":"29-472-8","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/75d224261193ba5019d5f24a2a64caf5.jpg?v=1788338985","url":"https:\/\/voomisupply.com\/products\/spi-29-472-8-class-zz-plus-plug-gage-0-472-in","provider":"Voomi Supply","version":"1.0","type":"link"}