{"product_id":"spi-29-512-1-class-zz-plus-plug-gage-0-512-in","title":"Spi 29-512-1 Class Zz Plus Plug Gage 0.512 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-512-1 is a Class ZZ Plus plug gage designed to verify bore and hole diameters with consistent, repeatable accuracy. Built from steel, this go\/no-go style gage checks a nominal diameter of 0.512 inches to a tolerance of 0.0002 inches. Class ZZ is the standard tolerance grade for general-purpose inspection of production parts. Machinists, quality technicians, and tool-room professionals use plug gages like this one to confirm that drilled, reamed, or bored holes meet print specifications before parts advance through the production process.\u003c\/p\u003e\n\u003cp\u003eThis gage is suited for dimensional inspection on the shop floor or in a quality lab. It is appropriate for use in manufacturing environments where hole-size verification is required on ferrous and non-ferrous workpieces. The 0.512-inch diameter range targets applications where close-tolerance bore inspection is part of a standard quality-control workflow. At 0.2 pounds, it is lightweight and 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 0.512 inches for precise bore verification\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance grade at 0.0002 inches for general production inspection\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and dimensional stability during repeated use\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.2 pounds for comfortable single-handed operation\u003c\/li\u003e\n  \u003cli\u003eSingle-piece package quantity — ready to use out of the box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use plug gage for general-purpose bore inspection applications requiring a 0.512-inch nominal diameter at Class ZZ Plus tolerance.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled and used by machinists and quality-control technicians — no power tools or electrical shutoff procedures apply. Clean the gage and the bore being checked before use to prevent debris from affecting the reading. Do not force the gage into an undersized hole, as this can damage the gage or the workpiece. Store in a protective case away from temperature extremes to maintain dimensional accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Diameter\u003c\/strong\u003e: 0.512 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: 29-512-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51720964899122,"sku":"29-512-1","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bc61a6f5745b4e39008cf1508ce54971.jpg?v=1788571568","url":"https:\/\/voomisupply.com\/products\/spi-29-512-1-class-zz-plus-plug-gage-0-512-in","provider":"Voomi Supply","version":"1.0","type":"link"}