{"product_id":"spi-19-250-0-class-zz-minus-plug-pin-gage-0-25-inch","title":"Spi 19-250-0 Class Zz Minus Plug Pin Gage 0.25 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-250-0 is a Class ZZ minus plug pin gage used to verify bore and hole diameters in precision machining and inspection applications. Sized at 0.25 inches in diameter, this gage is manufactured from steel and holds a tolerance of 0.0002 inches, making it suitable for go\/no-go inspection routines where dimensional accuracy is critical. Class ZZ is the standard tolerance class for general-purpose inspection gages used in production and shop-floor environments. Machinists, quality control technicians, and tool-and-die professionals rely on plug gages like this one to confirm that drilled, reamed, or bored features meet print specifications.\u003c\/p\u003e\n\u003cp\u003eThis plug pin gage is intended for use in manufacturing, machine shops, and quality inspection departments where hole diameter verification is a routine part of the process. It is well suited for checking 0.25-inch nominal diameter features on machined components across a range of industries including aerospace, automotive, and general metalworking. The minus designation indicates the gage is ground to the lower boundary of the tolerance range, consistent with standard go-gage practice for checking minimum material condition.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ tolerance class for general-purpose production inspection\u003c\/li\u003e\n  \u003cli\u003e0.25 inch nominal diameter for direct bore verification\u003c\/li\u003e\n  \u003cli\u003eTolerance of 0.0002 inches for reliable dimensional control\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in shop-floor use\u003c\/li\u003e\n  \u003cli\u003eMinus designation ground to lower tolerance boundary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard go-gage style plug pin gage for use with 0.25 inch nominal diameter bores in general machining and quality inspection applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug pin gages are used by quality technicians and machinists and require no permanent installation. Handle the gage with clean, dry hands or cotton gloves to prevent corrosion from skin oils. Store in a protective case away from abrasive materials when not in use. Calibrate or verify against a certified master gage at regular intervals per your facility quality plan.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 0.25 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\u003eClass\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: 19-250-0\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51698039652658,"sku":"19-250-0","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c0f8efe007e04a925db0435b0ac69fb4.jpg?v=1788357038","url":"https:\/\/voomisupply.com\/products\/spi-19-250-0-class-zz-minus-plug-pin-gage-0-25-inch","provider":"Voomi Supply","version":"1.0","type":"link"}