{"product_id":"spi-29-408-2-class-zz-plus-plug-gage-0-408-inch","title":"Spi 29-408-2 Class Zz Plus Plug Gage 0.408 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-408-2 is a Class ZZ Plus plug gage designed to verify inside diameters with a nominal measurement diameter of 0.408 inches and a tolerance of 0.0002 inches. Plug gages are go\/no-go inspection tools used in precision machining and quality control environments to confirm that a drilled, reamed, or bored hole falls within an acceptable tolerance range. Constructed from steel, this gage provides the durability and dimensional stability required for repeated use in production or shop-floor inspection. Machinists, toolmakers, and quality control technicians are the primary users of this type of gage.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is suited for use in machine shops, manufacturing facilities, and precision fabrication environments where tight bore tolerances must be verified. It is appropriate for both production inspection and incoming material verification. The Class ZZ Plus designation indicates a commercial-grade tolerance class commonly used for general-purpose inspection of holes and bores in metal, plastic, and composite workpieces. Its compact size makes it easy to handle during repetitive inspection tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.408 inches for precise bore verification\u003c\/li\u003e\n  \u003cli\u003eTolerance of 0.0002 inches meeting Class ZZ Plus specifications\u003c\/li\u003e\n  \u003cli\u003eSteel construction for dimensional stability and wear resistance\u003c\/li\u003e\n  \u003cli\u003eGo\/no-go design streamlines pass\/fail inspection decisions\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy single-hand operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-use plug gage for inspecting bored, drilled, or reamed holes with a nominal diameter of 0.408 inches in general manufacturing and machine shop applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled by machinists and quality control technicians and do not require permanent installation. Before use, ensure the workpiece bore and the gage surface are clean and free of burrs, chips, or debris to prevent false readings and gage wear. Do not force the gage through a bore, as this can damage the gage surface and compromise measurement accuracy. Store the gage in its protective case when not in use to maintain calibration integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Diameter\u003c\/strong\u003e: 0.408 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 (mm)\u003c\/strong\u003e: 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: 29-408-2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51714596929842,"sku":"29-408-2","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9736d403213348e66a482f9f88becb3d.jpg?v=1788503670","url":"https:\/\/voomisupply.com\/products\/spi-29-408-2-class-zz-plus-plug-gage-0-408-inch","provider":"Voomi Supply","version":"1.0","type":"link"}