{"product_id":"spi-29-419-9-class-zz-plus-plug-gage-0-419-in","title":"Spi 29-419-9 Class Zz Plus Plug Gage 0.419 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-419-9 is a Class ZZ Plus plug gage designed to verify the diameter of machined holes and bores to a nominal size of 0.419 inches. Built from steel, this go\/no-go style gage provides a tolerance of 0.0002 inches, making it suitable for production inspection and quality control work where dimensional accuracy is critical. Machinists, toolmakers, and quality control technicians use plug gages like this one to confirm that finished bores fall within specified tolerance limits before parts advance through the manufacturing process.\u003c\/p\u003e\n\u003cp\u003eThis gage is used in machine shops, manufacturing facilities, and tool rooms for inspection of drilled, reamed, or bored holes in metal and other hard materials. The 0.419-inch nominal diameter targets mid-range bore sizes common in general precision machining. It is suited to incoming inspection, in-process checks, and final part verification on production lines where consistent hole sizing is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.419 inches for precise bore inspection\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance of 0.0002 inches for reliable go\/no-go checking\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in shop environments\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy one-hand use\u003c\/li\u003e\n  \u003cli\u003eSingle-piece packaging, ready for immediate use out of the box\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 inspection of 0.419-inch nominal diameter bores in general precision machining and manufacturing applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are used by machinists and quality control personnel and require no installation. 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 an undersized bore, as this can damage the gage surface and compromise calibration. Gages should be recalibrated periodically per applicable shop quality standards to ensure continued measurement accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.419 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches (0.0002 mm)\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  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 29-419-9\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51699404669234,"sku":"29-419-9","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b5b6fafe5d1645bb047dee01c22d5181.jpg?v=1788375487","url":"https:\/\/voomisupply.com\/products\/spi-29-419-9-class-zz-plus-plug-gage-0-419-in","provider":"Voomi Supply","version":"1.0","type":"link"}