{"product_id":"spi-19-503-2-class-zz-minus-plug-pin-gage-0-503-in","title":"Spi 19-503-2 Class Zz Minus Plug Pin Gage 0.503 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-503-2 is a Class ZZ minus plug pin gage machined to a 0.503-inch nominal diameter with a tolerance of 0.0002 inches. Plug pin gages are precision hand tools used to verify bore and hole dimensions by checking whether a feature accepts or rejects the gage pin. Class ZZ is the standard inspection-grade tolerance class for general-purpose go\/no-go gauging in production and quality-control environments. The minus designation means the gage is ground to the lower boundary of the tolerance band, making it suitable as a go-member check. The body is machined from steel for dimensional stability and resistance to wear during repeated use.\u003c\/p\u003e\n\u003cp\u003eThis pin gage is used in machine shops, manufacturing facilities, and precision inspection stations where hole diameter verification is required. It is appropriate for incoming inspection, in-process quality checks, and final acceptance gauging of drilled, reamed, or bored features. Machinists, quality technicians, and tool-and-die professionals routinely use Class ZZ pin gages to confirm dimensional compliance to print tolerances in both low-volume job-shop and high-volume production settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.503-inch nominal diameter for direct bore verification at that dimension\u003c\/li\u003e\n  \u003cli\u003eClass ZZ tolerance class suitable for general-purpose production gauging\u003c\/li\u003e\n  \u003cli\u003eMinus designation ground to the lower tolerance boundary for go-member applications\u003c\/li\u003e\n  \u003cli\u003e0.0002-inch tolerance for reliable dimensional control\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides durability and resistance to wear over repeated use cycles\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 with any pin gage handle or collet holder accepting 0.503-inch diameter gage pins in general-purpose dimensional inspection applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePin gages should be handled with clean, dry hands or inspection gloves to prevent corrosion and dimensional error from skin oils and debris. Before use, inspect the gage surface for nicks, burrs, or wear that could affect measurement accuracy. Store the gage in a protected case away from other metal tools to avoid surface damage. Calibration against a traceable standard is recommended at regular intervals to maintain measurement integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.503 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\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: 19-503-2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51695503147314,"sku":"19-503-2","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a9135569dc1e5430e77fbe805fe446ea.jpg?v=1788335877","url":"https:\/\/voomisupply.com\/products\/spi-19-503-2-class-zz-minus-plug-pin-gage-0-503-in","provider":"Voomi Supply","version":"1.0","type":"link"}