{"product_id":"spi-29-446-2-class-zz-plus-plug-gage-0-446-in","title":"Spi 29-446-2 Class Zz Plus Plug Gage 0.446 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-446-2 is a Class ZZ Plus plug gage designed to verify hole diameters to a nominal size of 0.446 inches with a tolerance of 0.0002 inches. Built from steel, this go\/no-go style gage gives machinists, quality technicians, and precision tradespeople a fast, reliable method for confirming bore dimensions during inspection or in-process checks. Class ZZ is the standard tolerance grade for general-purpose plug gages used in production and shop-floor measurement where repeatable, accurate diameter verification is required.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is suited for use in machine shops, manufacturing facilities, and toolrooms where hole diameter conformance must be confirmed against a defined tolerance. It is appropriate for inspecting drilled, reamed, or bored holes in metal, plastic, or composite workpieces. At 0.446 inches nominal diameter, the 29-446-2 falls within the common range used for precision fastener clearance holes, dowel pin fits, and similar close-tolerance applications. Quality control inspectors and CNC machinists routinely use this type of gage as part of a standard inspection process.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.446 inches for precise bore verification\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance of 0.0002 inches for reliable general-purpose inspection\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and dimensional stability in shop environments\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy single-hand use\u003c\/li\u003e\n  \u003cli\u003eIndividual unit packaging suitable for bench, floor, or toolroom use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use Class ZZ plug gage for standard shop inspection of 0.446-inch nominal diameter bores in production and quality control environments.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages should be handled by metrology or quality control personnel following standard gage-handling procedures. Clean and lightly oil the gage before and after each use to prevent corrosion and maintain accuracy. Do not force the gage through a hole; excessive insertion force can damage both the gage and the workpiece and will produce unreliable results. Store in a protective case away from temperature extremes to preserve dimensional integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.446 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: 29-446-2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51695631171890,"sku":"29-446-2","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8418af6afbda7d712d4f50780b466c2d.jpg?v=1788337047","url":"https:\/\/voomisupply.com\/products\/spi-29-446-2-class-zz-plus-plug-gage-0-446-in","provider":"Voomi Supply","version":"1.0","type":"link"}