{"product_id":"spi-29-518-8-class-zz-plus-plug-gage-0-518-in","title":"Spi 29-518-8 Class Zz Plus Plug Gage 0.518 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-518-8 is a Class ZZ Plus plug gage designed for go\/no-go inspection of 0.518-inch diameter bores and holes. It provides a reliable, hand-held method for verifying that a machined or drilled hole meets the specified dimensional tolerance. The gage is manufactured from steel for durability and dimensional stability under repeated use. With a tolerance of 0.0002 inches, this gage is suited for quality control work in machine shops, manufacturing facilities, and maintenance environments where tight bore tolerances must be confirmed quickly and accurately.\u003c\/p\u003e\n\u003cp\u003ePlug gages of this type are used in production inspection and incoming quality control wherever hole diameter must be verified to close tolerances. The 29-518-8 is appropriate for checking bores in machined components, fixtures, tooling blocks, and similar metal or hard-material parts. It is a standard tool in machine shops and metrology departments handling work that requires repeatable, traceable dimensional verification. Class ZZ Plus designation indicates it meets the tolerance class associated with production-level go\/no-go inspection work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.518-inch nominal diameter for direct bore inspection\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance class for production go\/no-go inspection\u003c\/li\u003e\n  \u003cli\u003e0.0002-inch tolerance for close-tolerance bore verification\u003c\/li\u003e\n  \u003cli\u003eSteel construction for dimensional stability and wear resistance\u003c\/li\u003e\n  \u003cli\u003eCompact, hand-held form factor for fast in-process checks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct substitute for Class ZZ Plus plug gages measuring 0.518-inch diameter bores in production inspection and quality control applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled and used by machinists, quality technicians, and inspection personnel. Before use, clean both the gage and the bore to remove chips, coolant, or debris that could affect the reading. Allow the gage and workpiece to stabilize to the same ambient temperature to avoid thermal expansion errors. Do not force the gage into the bore, as this can damage the gage surface and produce false readings.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.518 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: 29-518-8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51711812206898,"sku":"29-518-8","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4bda63c6dc36220272f2adf3f0c46362.jpg?v=1788479899","url":"https:\/\/voomisupply.com\/products\/spi-29-518-8-class-zz-plus-plug-gage-0-518-in","provider":"Voomi Supply","version":"1.0","type":"link"}