{"product_id":"spi-29-256-5-class-zz-plus-plug-gage-0-256-inch","title":"Spi 29-256-5 Class Zz Plus Plug Gage 0.256 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-256-5 is a Class ZZ Plus plug gage used to inspect and verify hole diameters in precision machining and quality control applications. It measures a nominal diameter of 0.256 inches with a tolerance of 0.0002 inches, making it suitable for go\/no-go inspection work where tight dimensional control is required. Constructed from steel, this gage is designed to hold up under repeated use in shop environments. Machinists, quality technicians, and tool-and-die professionals use plug gages like this one as part of standard inspection routines on production and job-shop floors.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is appropriate for verifying bored, drilled, or reamed holes in both production and prototype settings. It is a fit for light manufacturing, aerospace component inspection, and general metalworking shops where dimensional accuracy must be confirmed before parts advance to the next operation. The 0.256-inch diameter targets a specific hole size common in precision fastener and pin-fit applications. Class ZZ Plus tolerance class places this gage in the working-gage category, suited for routine inspection rather than master-gage calibration duties.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.256-inch nominal measurement diameter for targeted hole inspection\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance class at 0.0002 inches for reliable working-gage accuracy\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in production shop environments\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy single-hand use\u003c\/li\u003e\n  \u003cli\u003eSingle-piece unit quantity for individual replacement or supplemental inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style working gage for use with standard plug gage handles and frames sized for the 0.256-inch diameter range, consistent with common Class ZZ Plus gage system configurations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug 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, nicks, or debris that could affect measurement accuracy. Store in a protective case away from temperature extremes to maintain dimensional stability. Calibration intervals should follow your facility quality management plan or applicable inspection standards.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.256 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 (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: 29-256-5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51721328165170,"sku":"29-256-5","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ea33a67784cb670349c628ac8add785c.jpg?v=1788576524","url":"https:\/\/voomisupply.com\/products\/spi-29-256-5-class-zz-plus-plug-gage-0-256-inch","provider":"Voomi Supply","version":"1.0","type":"link"}