{"product_id":"spi-29-872-9-class-zz-plus-plug-gage-0-872-in-dia","title":"Spi 29-872-9 Class Zz Plus Plug Gage 0.872 in Dia","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-872-9 is a Class ZZ Plus plug gage designed to verify the dimensional accuracy of bored, reamed, or machined holes with a nominal diameter of 0.872 inches. Manufactured from steel, it delivers a tolerance of 0.0002 inches, making it suitable for production inspection and quality-control applications where repeatable, reliable go\/no-go measurement is required. Machinists, toolmakers, and quality technicians use plug gages like this one to confirm that hole dimensions fall within acceptable limits before parts advance to the next stage of production or assembly.\u003c\/p\u003e\n\u003cp\u003eThis gage is used in machine shops, manufacturing facilities, and precision fabrication environments. It is appropriate for inspecting holes in ferrous and non-ferrous workpieces produced by drilling, reaming, boring, or grinding operations. The Class ZZ tolerance class is standard for general-purpose inspection gaging in production settings. The compact size and 0.2-pound weight make it easy to handle at the machine or inspection station.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.872 inches for direct hole verification\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance of 0.0002 inches for production-grade inspection accuracy\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and wear resistance in shop environments\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.2 pounds for easy single-hand use at the workpiece\u003c\/li\u003e\n  \u003cli\u003eGo\/no-go design enables fast pass-fail decisions without calculation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Class ZZ Plus plug gage for general-purpose inspection of machined holes at 0.872 inches nominal diameter in production and quality-control applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are used by machinists and quality-control inspectors and require no permanent installation. Before use, clean the gage and the workpiece hole thoroughly to remove chips, coolant, and debris that could affect measurement accuracy. Never force a plug gage into a hole; apply only light, controlled pressure to avoid damaging the gage or altering the workpiece. Store the gage in its protective case and handle it with clean, dry hands or gloves to prevent corrosion and dimensional change from heat transfer.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.872 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: Class 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: 29-872-9\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51698935693618,"sku":"29-872-9","price":16.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4c0637cea8b0ae1f5c62be65e46dff49.jpg?v=1788370053","url":"https:\/\/voomisupply.com\/products\/spi-29-872-9-class-zz-plus-plug-gage-0-872-in-dia","provider":"Voomi Supply","version":"1.0","type":"link"}