{"product_id":"spi-29-591-5-class-zz-plus-plug-gage-0-591-in","title":"Spi 29-591-5 Class Zz Plus Plug Gage 0.591 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-591-5 is a Class ZZ Plus plug gage used to verify the dimensional accuracy of drilled, reamed, or bored holes. It measures a nominal diameter of 0.591 inches with a tolerance of 0.0002 inches, making it suitable for go\/no-go inspection work in production and quality control environments. Constructed from steel, this gage provides the durability needed for repeated use in shop-floor measurement applications. Machinists, toolmakers, and quality technicians rely on plug gages like this one to confirm that inside diameters conform to print specifications before parts move to the next stage of manufacturing.\u003c\/p\u003e\n\u003cp\u003eThis gage is intended for use in precision measurement and inspection of cylindrical bores. It is well suited for incoming inspection, in-process quality checks, and final part verification in machine shops, manufacturing facilities, and job shops. The Class ZZ Plus designation indicates the tolerance class of the gage itself, which determines how closely the gage conforms to its stated nominal size. This makes it appropriate for general-purpose inspection where a high degree of gage accuracy is required without the cost of tighter-class toolroom gages.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.591 inches for precise bore verification\u003c\/li\u003e\n  \u003cli\u003eTolerance of 0.0002 inches meets Class ZZ Plus gage accuracy standards\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides wear resistance for repeated shop 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 packaging suitable for individual workstation or toolbox use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose plug gage for inspecting cylindrical bores with a nominal diameter of 0.591 inches in standard machining and quality inspection applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled and used by machinists, toolmakers, and quality control inspectors — no installation in the mechanical sense is required. Store the gage in a protective case away from other tooling to prevent surface damage. Clean the gage and the bore being measured before use to avoid false readings caused by chips or debris. Do not force the gage into an undersize bore, as this can damage the gage surface and compromise measurement accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Diameter\u003c\/strong\u003e: 0.591 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches\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  \u003cli\u003e\n\u003cstrong\u003eGage Class\u003c\/strong\u003e: ZZ Plus\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: 29-591-5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51693442367794,"sku":"29-591-5","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3a501421ef1daeef83e4427d1002e026.jpg?v=1788312446","url":"https:\/\/voomisupply.com\/products\/spi-29-591-5-class-zz-plus-plug-gage-0-591-in","provider":"Voomi Supply","version":"1.0","type":"link"}