{"product_id":"spi-19-564-4-class-zz-minus-plug-pin-gage-0-564-in","title":"Spi 19-564-4 Class Zz Minus Plug Pin Gage 0.564 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-564-4 is a Class ZZ minus plug pin gage designed to verify hole diameters and bore tolerances in precision manufacturing and inspection environments. At 0.564 inches in diameter, this gage is used to confirm whether a hole is within specified dimensional limits. The minus designation means the gage is manufactured to the lower allowable tolerance boundary, providing a go\/no-go reference point for quality control checks. Machined from steel for durability and dimensional stability, it is a standard tool in toolrooms, machine shops, and production inspection stations.\u003c\/p\u003e\n\u003cp\u003eClass ZZ plug gages are the most common grade used in general-purpose inspection work where high-precision laboratory tolerances are not required. This 0.564-inch gage fits inspection workflows for machined components, fabricated assemblies, and production runs where hole size verification is part of the quality process. It is handled by machinists, quality technicians, and manufacturing engineers performing dimensional checks on drilled, reamed, or bored features.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ tolerance class suitable for general-purpose production inspection\u003c\/li\u003e\n  \u003cli\u003eMinus designation provides lower-boundary go\/no-go reference for hole verification\u003c\/li\u003e\n  \u003cli\u003e0.564-inch nominal diameter for precise bore and hole checks\u003c\/li\u003e\n  \u003cli\u003eSteel construction for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003e0.0002-inch (0.0002 mm) tolerance for consistent measurement repeatability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Class ZZ minus plug gage for use in general-purpose dimensional inspection of holes and bores measuring 0.564 inches in diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug pin gages are used by quality technicians and machinists during inspection and do not require installation in the traditional sense. Before use, clean the gage and the bore being checked to remove chips, oil, or debris that could affect measurement accuracy. Do not force the gage into a hole; apply light, steady hand pressure only. Store the gage in a protective case away from other tooling to prevent surface damage and maintain calibration integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.564 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: 19-564-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51696065577266,"sku":"19-564-4","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fa3b7389c794fb05fbc1aa3efdbca443.jpg?v=1788339973","url":"https:\/\/voomisupply.com\/products\/spi-19-564-4-class-zz-minus-plug-pin-gage-0-564-in","provider":"Voomi Supply","version":"1.0","type":"link"}