{"product_id":"spi-29-547-7-class-zz-plus-plug-gage-0-547-in","title":"Spi 29-547-7 Class Zz Plus Plug Gage 0.547 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-547-7 is a Class ZZ Plus plug gage designed to verify bore and hole diameters with precision in machine shop and manufacturing environments. Built from steel, this fixed-limit gage checks a nominal diameter of 0.547 inches with a tolerance of 0.0002 inches, making it suitable for go\/no-go inspection workflows where dimensional accuracy is critical. Weighing just 0.2 pounds, it is a compact, hand-held inspection tool used by machinists, quality control technicians, and tool-and-die professionals on the shop floor.\u003c\/p\u003e\n\u003cp\u003eClass ZZ Plus plug gages are used in general-purpose dimensional inspection of drilled, reamed, and bored holes in both production and toolroom settings. This gage is appropriate for inspecting holes in metal and plastic workpieces where tight dimensional tolerances must be confirmed before assembly or further machining. It is a standard item in quality assurance kits across aerospace, automotive, and general manufacturing operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ Plus accuracy grade for general-purpose go\/no-go hole inspection\u003c\/li\u003e\n  \u003cli\u003e0.547 inch nominal diameter measurement range\u003c\/li\u003e\n  \u003cli\u003e0.0002 inch tolerance for reliable dimensional verification\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and wear resistance in shop environments\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy single-hand use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style fixed-limit inspection tool for verifying 0.547 inch diameter bores in general manufacturing and toolroom applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled and used by machinists and quality control inspectors — no permanent installation is required. Clean the gage and the bore being measured before use to prevent debris from affecting readings. Store the gage in a protective case away from other tooling to prevent surface damage that could compromise accuracy. Handle with care to avoid dropping, as impact can alter gage geometry and invalidate calibration.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.547 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\u003eAccuracy 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: 29-547-7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51713305805106,"sku":"29-547-7","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/781c78ca7543d0b0b73dc91d58a20b12.jpg?v=1788492699","url":"https:\/\/voomisupply.com\/products\/spi-29-547-7-class-zz-plus-plug-gage-0-547-in","provider":"Voomi Supply","version":"1.0","type":"link"}