{"product_id":"spi-19-255-9-class-zz-minus-plug-pin-gage-0-255-in","title":"Spi 19-255-9 Class Zz Minus Plug Pin Gage 0.255 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 19-255-9 is a Class ZZ minus plug pin gage machined to a nominal diameter of 0.255 inches with a minus tolerance of 0.0002 inches. Pin gages are precision inspection tools used to verify hole diameters, slot widths, and bore sizes to a defined tolerance class. The Class ZZ designation indicates a working-grade gage suitable for production floor inspection and go\/no-go gauging tasks. Constructed from steel, this gage delivers the hardness and dimensional stability required for repeatable measurement across production runs. Machinists, quality control technicians, and tool and die professionals rely on pin gages like this one to confirm that drilled, reamed, or punched features conform to drawing tolerances.\u003c\/p\u003e\n\u003cp\u003eThis gage is used in manufacturing, fabrication, and metrology environments where hole size verification is part of the inspection process. It is appropriate for checking features in metal, plastic, and composite workpieces. The 0.255-inch diameter and minus tolerance configuration makes it suited for checking the low limit of a tolerance band, confirming that a hole is at or above the minimum acceptable size. It fits into standard pin gage handles or can be used as a standalone plug to verify clearance fits and location holes on production parts.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal diameter of 0.255 inches for precise hole and bore inspection\u003c\/li\u003e\n  \u003cli\u003eClass ZZ minus tolerance of 0.0002 inches for working-grade go\/no-go gauging\u003c\/li\u003e\n  \u003cli\u003eSteel construction for hardness and long-term dimensional stability\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard pin gage handles for ergonomic production use\u003c\/li\u003e\n  \u003cli\u003eSingle-piece packaging suitable for individual replacement or kit supplementing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a working-grade Class ZZ plug pin gage for use with standard pin gage handle sets and in general production inspection applications requiring a 0.255-inch nominal diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePin gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Before use, verify the gage surface is free of burrs, debris, or damage that could affect measurement accuracy. Store in a protective case away from temperature extremes to maintain dimensional integrity. Calibration intervals should follow the shop quality plan or applicable metrology standards such as ASME B89.1.5.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.255 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: 19-255-9\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51701154709810,"sku":"19-255-9","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/166e2843e79dd2b0f8faffc8209da7b6.jpg?v=1788398940","url":"https:\/\/voomisupply.com\/products\/spi-19-255-9-class-zz-minus-plug-pin-gage-0-255-in","provider":"Voomi Supply","version":"1.0","type":"link"}