{"product_id":"spi-29-258-1-class-zz-plus-plug-gage-0-258-in-dia","title":"Spi 29-258-1 Class Zz Plus Plug Gage 0.258 in Dia","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-258-1 is a Class ZZ Plus plug gage used to verify the diameter of bored, drilled, or reamed holes to a nominal size of 0.258 inches. It holds a tolerance of 0.0002 inches, meeting Class ZZ Plus accuracy standards for go\/no-go inspection work. The gage is constructed from steel for durability and dimensional stability under repeated use. Machinists, tool and die technicians, and quality control inspectors use this type of gage during in-process and final inspection to confirm that hole diameters fall within specified limits before assembly.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is suited for use in machine shops, manufacturing facilities, and precision fabrication environments where hole size verification is a standard step in the inspection process. It is appropriate for checking holes produced by drilling, boring, reaming, or EDM operations in both ferrous and non-ferrous workpieces. The 0.258-inch nominal diameter targets a specific size range common in close-tolerance mechanical assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.258 inches for precise hole inspection\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance of 0.0002 inches for accurate go\/no-go gauging\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy single-hand use\u003c\/li\u003e\n  \u003cli\u003eSingle-piece package quantity supports individual replacement or spot procurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Class ZZ Plus plug gage for use with any go\/no-go gage handle or holding fixture that accommodates the 0.258-inch diameter range. Confirm handle size range compatibility before use.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages should be handled and stored carefully to prevent nicks, burrs, or corrosion that would affect accuracy. Clean the gage and the hole being checked before use to eliminate chips or debris that can produce false readings. Calibration against a traceable standard is recommended on a regular schedule to verify gage integrity. Only qualified inspection personnel or machinists familiar with go\/no-go gauging practice should use precision plug gages in a production environment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.258 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Class\u003c\/strong\u003e: ZZ Plus\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: 29-258-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51720930033970,"sku":"29-258-1","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6f29557200c50253a067e49ba61ec47a.jpg?v=1788571100","url":"https:\/\/voomisupply.com\/products\/spi-29-258-1-class-zz-plus-plug-gage-0-258-in-dia","provider":"Voomi Supply","version":"1.0","type":"link"}