{"product_id":"spi-29-478-5-class-zz-plus-plug-gage-0-478-in","title":"Spi 29-478-5 Class Zz Plus Plug Gage 0.478 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI 29-478-5 is a Class ZZ Plus plug gage designed to verify bore and hole diameters to a nominal measurement of 0.478 inches with a tolerance of 0.0002 inches. Manufactured from steel, this plug gage provides a reliable go\/no-go reference for quality control and dimensional inspection tasks. Class ZZ is the standard tolerance class for general-purpose inspection of production parts, and the Plus designation indicates the gage is ground to the high side of the tolerance. Machinists, toolroom technicians, and quality control inspectors use plug gages like this one to confirm that drilled, reamed, or bored features meet print specifications.\u003c\/p\u003e\u003cp\u003eThis plug gage is suited for use in machine shops, toolrooms, and manufacturing inspection environments where accurate hole verification is required. It is appropriate for checking features in both ferrous and non-ferrous workpieces where the nominal diameter falls at 0.478 inches. The lightweight design, at 0.2 pounds, makes it easy to handle during high-volume inspection routines.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eClass ZZ Plus tolerance class for general-purpose production inspection\u003c\/li\u003e\n\u003cli\u003eNominal diameter of 0.478 inches for precise bore verification\u003c\/li\u003e\n\u003cli\u003eTolerance of 0.0002 inches ensures accurate go\/no-go assessment\u003c\/li\u003e\n\u003cli\u003eSteel construction provides durability and wear resistance during repeated use\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.2 pounds for comfortable single-hand use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose plug gage for verifying 0.478-inch diameter bores and holes in standard production inspection applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003ePlug gages are used by toolroom and quality control personnel and require no permanent installation. Before use, clean the gage and the feature being inspected to remove chips, coolant, and debris that could affect readings. Store the gage in a protective case when not in use to prevent surface damage that would compromise accuracy. Calibration and handling should follow ASME B89.1.5 or equivalent standards applicable to the facility.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.478 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\u003eTolerance Class\u003c\/strong\u003e: Class ZZ Plus\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 29-478-5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51784417575218,"sku":"29-478-5","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8f2583a06090df4e0ee086055b53cef8.jpg?v=1789198970","url":"https:\/\/voomisupply.com\/products\/spi-29-478-5-class-zz-plus-plug-gage-0-478-in","provider":"Voomi Supply","version":"1.0","type":"link"}