{"product_id":"spi-19-475-3-class-zz-minus-plug-pin-gage-0-475-in","title":"Spi 19-475-3 Class Zz Minus Plug Pin Gage 0.475 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-475-3 is a Class ZZ minus plug pin gage designed to check the minimum acceptable diameter of drilled, reamed, or bored holes in precision machining and quality control applications. The gage measures 0.475 inches in diameter with a tolerance of 0.0002 inches, conforming to Class ZZ specifications for go\/no-go inspection work. Constructed from steel for durability and dimensional stability, it is a standard tool in manufacturing inspection, toolroom setups, and incoming part verification. Machinists, quality technicians, and toolroom specialists rely on this type of gage for fast, reliable hole-size confirmation without the need for electronic measurement equipment.\u003c\/p\u003e\n\u003cp\u003eThis plug pin gage is suited for inspection tasks in machine shops, production floors, and quality control departments. It is used wherever consistent hole-diameter verification is required, including checking tolerance compliance on machined components, fixtures, and assemblies. The minus designation means the gage is ground to the lower boundary of the specified diameter, making it appropriate for checking that a hole has not been undercut beyond the minimum allowable size. It is a single-ended gage intended for hand use in bench or floor inspection settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ tolerance class for general-purpose go\/no-go hole inspection\u003c\/li\u003e\n  \u003cli\u003eMinus designation confirms hole minimum acceptable diameter\u003c\/li\u003e\n  \u003cli\u003e0.0002 inch tolerance for reliable dimensional verification\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides dimensional stability and wear resistance\u003c\/li\u003e\n  \u003cli\u003e0.475 inch nominal diameter for standard drilled and reamed hole sizes\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 general-purpose hole inspection in machining and quality control environments. No specific equipment compatibility is stated by the manufacturer for this part.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug pin gages are hand tools used by machinists and quality technicians and require no installation. Store the gage in a clean, dry environment to prevent corrosion and maintain dimensional accuracy. Do not force the gage into a hole; apply light, steady hand pressure only. Clean the gage and the hole being inspected before use to avoid debris-related false readings.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.475 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  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 19-475-3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51708520595762,"sku":"19-475-3","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/179f62e4b31a88b00523df08a640bbeb.jpg?v=1788446792","url":"https:\/\/voomisupply.com\/products\/spi-19-475-3-class-zz-minus-plug-pin-gage-0-475-in","provider":"Voomi Supply","version":"1.0","type":"link"}