{"product_id":"spi-19-904-2-class-zz-minus-plug-pin-gage-0-904-in","title":"Spi 19-904-2 Class Zz Minus Plug Pin Gage 0.904 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-904-2 is a Class ZZ minus plug pin gage machined to a 0.904-inch nominal diameter with a minus tolerance of 0.0002 inches. Pin gages in the Class ZZ category are designed for go\/no-go inspection of drilled, reamed, and punched holes where moderate precision is required. The steel construction provides durability for repeated use in shop-floor and inspection environments. Machinists, quality technicians, and tool-and-die professionals use plug pin gages to verify hole diameter conformance to print tolerance during in-process and final inspection.\u003c\/p\u003e\n\u003cp\u003eThis gage is suited for dimensional inspection work in manufacturing, fabrication, and machine shop settings. It is used to check hole size on ferrous and non-ferrous workpieces across a range of industries including general metalworking, aerospace component inspection, and precision machining. The minus designation means the gage is ground to the lower boundary of the Class ZZ tolerance band, making it appropriate for checking the minimum acceptable hole condition. It is typically used as a standalone gage or as part of a complete pin gage set.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.904-inch nominal diameter ground to Class ZZ minus tolerance standard\u003c\/li\u003e\n  \u003cli\u003eTolerance of 0.0002 inches for reliable go\/no-go inspection accuracy\u003c\/li\u003e\n  \u003cli\u003eSteel construction resists wear during repeated insertion cycles\u003c\/li\u003e\n  \u003cli\u003eCompact, single-pin format compatible with standard pin gage handles\u003c\/li\u003e\n  \u003cli\u003eSuitable for inspecting drilled, reamed, and punched hole diameters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct addition to Class ZZ pin gage sets used in standard shop-floor and inspection room dimensional gaging applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePin gages should be inserted by hand without forced or hammered contact to avoid damaging the gage or the workpiece bore. Clean the gage and the hole being inspected before use to prevent false readings from chips or coolant residue. Store the gage in its protective sleeve or case when not in use to maintain ground surface integrity. Calibration checks against a certified master should be performed periodically per your 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: 0.904 inches\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\u003eGage Class\u003c\/strong\u003e: 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: 19-904-2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51718950322482,"sku":"19-904-2","price":16.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9bbddd45b8d72056526e1ac037db019.jpg?v=1788556567","url":"https:\/\/voomisupply.com\/products\/spi-19-904-2-class-zz-minus-plug-pin-gage-0-904-in","provider":"Voomi Supply","version":"1.0","type":"link"}