{"product_id":"spi-19-840-8-class-zz-minus-plug-pin-gage-0-84-in","title":"Spi 19-840-8 Class Zz Minus Plug Pin Gage 0.84 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-840-8 is a Class ZZ minus plug pin gage designed for dimensional inspection and go\/no-go tolerance verification in precision measurement applications. Built from steel, this pin gage measures a nominal diameter of 0.84 inches with a minus tolerance of 0.0002 inches, making it suitable for checking hole sizes and bore diameters to close tolerances. It is used by quality control technicians, machinists, and toolroom personnel who require repeatable, traceable measurement results. The Class ZZ designation indicates a standard commercial-grade tolerance class appropriate for general inspection work where high-precision laboratory gages are not required.\u003c\/p\u003e\n\u003cp\u003eThis pin gage is suited for production floor inspection, incoming material inspection, and toolroom use across manufacturing, fabrication, and machining environments. It is typically used to verify hole diameter conformance in metal, plastic, and composite workpieces. The 0.84-inch diameter makes it appropriate for medium-bore applications where a stable, hand-held cylindrical gage is the preferred inspection method. Inspectors and machinists in both job shop and production settings rely on pin gages of this class for fast, reliable attribute inspection.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ minus tolerance designation for standard commercial inspection use\u003c\/li\u003e\n  \u003cli\u003eNominal diameter of 0.84 inches with a minus tolerance of 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and wear resistance during repeated use\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy single-hand operation\u003c\/li\u003e\n  \u003cli\u003eDesigned for go\/no-go attribute inspection of holes and bores\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard addition to Class ZZ plug pin gage sets used in general-purpose dimensional inspection of 0.84-inch nominal diameter holes and bores.\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 and contamination of the gage surface. Before use, verify the gage and workpiece are at a stable ambient temperature to avoid thermal expansion errors. Apply a light coat of gage oil for storage to protect the steel surface from rust. No power tools or mechanical fastening is required for use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.84 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\u003eTolerance (Decimal Inch)\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\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: 19-840-8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51693678854450,"sku":"19-840-8","price":16.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fda603d00f191fba81ff3e14fbb1f296.jpg?v=1788315948","url":"https:\/\/voomisupply.com\/products\/spi-19-840-8-class-zz-minus-plug-pin-gage-0-84-in","provider":"Voomi Supply","version":"1.0","type":"link"}