{"product_id":"spi-19-998-4-class-zz-minus-plug-pin-gage-0-998-in","title":"Spi 19-998-4 Class Zz Minus Plug Pin Gage 0.998 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-998-4 is a Class ZZ minus plug pin gage with a nominal diameter of 0.998 inches and a tolerance of 0.0002 inches. Pin gages of this class are used to verify hole sizes and check dimensional conformance on machined parts. The Class ZZ designation indicates a general-purpose inspection grade suited for production and shop-floor measurement work. The minus designation means the gage is manufactured to the minus side of the tolerance, which is standard for plug gages used to check go or no-go conditions. Machinists, quality control technicians, and toolroom professionals use these gages as part of standard dimensional inspection routines.\u003c\/p\u003e\n\u003cp\u003eThis pin gage is appropriate for use in manufacturing environments where hole diameter verification is required. It fits into dimensional inspection workflows in machine shops, fabrication facilities, and quality control departments. The 0.998-inch diameter is a common nominal size used in precision mechanical assemblies and tooling applications. The steel construction provides the hardness and wear resistance needed for repeated contact with metal workpieces during inspection.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ tolerance grade for general-purpose production inspection\u003c\/li\u003e\n  \u003cli\u003eMinus designation for standard plug gage go or no-go application\u003c\/li\u003e\n  \u003cli\u003e0.0002-inch tolerance for consistent and repeatable dimensional checking\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and wear resistance in shop environments\u003c\/li\u003e\n  \u003cli\u003e0.998-inch nominal diameter for common precision hole inspection tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Class ZZ minus plug pin gage for use in general production and inspection applications requiring verification of 0.998-inch nominal diameter holes.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePin gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Before use, ensure the gage and workpiece are at the same ambient temperature to avoid measurement error from thermal expansion. Store the gage in its protective case when not in use and apply a light coat of instrument oil periodically to prevent rust. Calibration should be verified against a traceable standard at regular intervals per your shop's quality management procedures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.998 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 Class\u003c\/strong\u003e: Class ZZ Minus\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: 19-998-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51690546692402,"sku":"19-998-4","price":16.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1fe66327fc13d314010ea7415681b65d.jpg?v=1788271409","url":"https:\/\/voomisupply.com\/products\/spi-19-998-4-class-zz-minus-plug-pin-gage-0-998-in","provider":"Voomi Supply","version":"1.0","type":"link"}