{"product_id":"spi-29-068-4-class-zz-plus-plug-gage-0-068-in","title":"Spi 29-068-4 Class Zz Plus Plug Gage 0.068 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-068-4 is a Class ZZ Plus plug gage used to verify bore and hole diameters in precision machining and quality control applications. It measures a nominal diameter of 0.068 inches with a tolerance of 0.0002 inches, making it suitable for tight-tolerance inspection work. The gage is constructed from steel for durability and dimensional stability during repeated use. Machinists, toolmakers, and quality technicians use plug gages like this to confirm whether a drilled or reamed hole falls within specified acceptance limits, functioning as a go or no-go reference tool in production and inspection settings.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is intended for use in precision manufacturing environments where small-diameter hole verification is required. It is well suited for inspecting drilled, reamed, or punched holes in metal, plastic, and composite components. The Class ZZ Plus designation indicates it meets a defined accuracy standard appropriate for workshop-grade inspection and in-process gauging on production floors and in quality labs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.068 inches for small-bore inspection\u003c\/li\u003e\n  \u003cli\u003eTolerance of 0.0002 inches for precise acceptance verification\u003c\/li\u003e\n  \u003cli\u003eSteel construction for dimensional stability and wear resistance\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus accuracy classification for workshop and production inspection\u003c\/li\u003e\n  \u003cli\u003eCompact, single-piece design for easy handling during in-process checks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard inspection tool for applications requiring plug gage verification of 0.068-inch nominal diameter holes in precision machining and quality control operations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are typically handled and applied by machinists, toolmakers, or quality control technicians. Clean the gage and the hole being measured before use to avoid debris-related measurement errors. Do not force the gage into a hole; excessive insertion force can damage the gage or the workpiece and will produce unreliable readings. Store the gage in a protective case away from temperature extremes to preserve dimensional accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.068 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy Class\u003c\/strong\u003e: Class 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: 29-068-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51715778380082,"sku":"29-068-4","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64d66aea3f02dee9aab8cbad20a4ee5b.jpg?v=1788518234","url":"https:\/\/voomisupply.com\/products\/spi-29-068-4-class-zz-plus-plug-gage-0-068-in","provider":"Voomi Supply","version":"1.0","type":"link"}