{"product_id":"spi-29-979-2-class-zz-plus-plug-gage-0-979-in-dia","title":"Spi 29-979-2 Class Zz Plus Plug Gage 0.979 in Dia","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-979-2 is a Class ZZ Plus plug gage used to verify the inside diameter of machined holes, bores, and drilled passages to a nominal size of 0.979 inches. It holds a tolerance of 0.0002 inches, which places it in the tighter ZZ Plus classification used where precise dimensional verification is required. The gage body is steel construction, providing durability and wear resistance during repeated use. Machinists, quality control technicians, and tool room personnel use plug gages like this one as part of go\/no-go inspection routines on production floors and in metrology departments.\u003c\/p\u003e\n\u003cp\u003eThis gage is suited for inspecting holes in metal components across light manufacturing, precision machining, and job shop environments. It is used wherever a 0.979-inch nominal bore diameter must be verified against a dimensional tolerance. Common applications include incoming inspection of purchased parts, in-process checks on CNC-machined components, and final inspection before assembly. The steel construction holds up to frequent contact with ferrous and non-ferrous workpieces without significant wear over normal service life.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ Plus classification for tighter tolerance plug gage inspection work\u003c\/li\u003e\n  \u003cli\u003e0.979-inch nominal diameter for direct bore verification\u003c\/li\u003e\n  \u003cli\u003e0.0002-inch tolerance provides precise dimensional control\u003c\/li\u003e\n  \u003cli\u003eSteel construction resists wear during repeated use\u003c\/li\u003e\n  \u003cli\u003eSingle-piece package quantity — no minimum order beyond one unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style plug gage for use in standard metrology and quality inspection applications requiring a 0.979-inch nominal diameter Class ZZ Plus gage.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled and used by machinists and quality inspection personnel — no installation in the traditional sense applies. Store the gage in a protective case away from moisture to prevent corrosion on the steel surface. Clean the gage and the bore being checked before use to ensure accurate readings. Do not force the gage into a hole; if resistance is felt beyond normal snug fit, stop and re-inspect the bore dimension.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.979 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches (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  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 41111600\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: 29-979-2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51710835065138,"sku":"29-979-2","price":16.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4b5c4fe301edcc3545a5ddb146a9c6ab.jpg?v=1788471173","url":"https:\/\/voomisupply.com\/products\/spi-29-979-2-class-zz-plus-plug-gage-0-979-in-dia","provider":"Voomi Supply","version":"1.0","type":"link"}