{"product_id":"spi-29-375-3-class-zz-plus-plug-gage-0-375-inch","title":"Spi 29-375-3 Class Zz Plus Plug Gage 0.375 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-375-3 is a Class ZZ Plus plug gage designed to verify inside diameter dimensions to a nominal size of 0.375 inches. Built from steel, this go\/no-go style instrument delivers a tolerance of 0.0002 inches, making it suitable for inspection and quality control work where dimensional accuracy is critical. Machinists, toolroom technicians, and quality assurance personnel use plug gages to confirm that bored, drilled, or reamed holes meet print specifications. The Class ZZ Plus designation indicates a standard commercial tolerance grade appropriate for general-purpose inspection of production parts.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is used in machine shops, manufacturing facilities, and toolrooms to inspect hole diameters in metal, plastic, and composite workpieces. It is well suited for incoming inspection, in-process checks, and final part verification on production runs. The 0.375 inch nominal diameter makes it a commonly needed size for fastener clearance holes and precision bores found across general metalworking and fabrication applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.375 inches for precise bore inspection\u003c\/li\u003e\n  \u003cli\u003eTolerance of 0.0002 inches for accurate Class ZZ Plus classification\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and wear resistance in shop environments\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy hand use during inspection\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus grade suitable for general-purpose production inspection work\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 general inspection of 0.375 inch nominal inside diameters in production and toolroom environments.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled and used by machinists or quality technicians and do not require installation in the traditional sense. Store the gage in a clean, dry location and allow it to reach ambient temperature before use to avoid thermal expansion errors. Handle with clean hands or cotton gloves to prevent corrosion from skin oils. Do not force the gage into a bore; excessive insertion force indicates the hole is undersized and can damage the gage surface.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.375 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: 29-375-3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51720591606066,"sku":"29-375-3","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7e12bc0f148e657c1e25de7291512c20.jpg?v=1788566596","url":"https:\/\/voomisupply.com\/products\/spi-29-375-3-class-zz-plus-plug-gage-0-375-inch","provider":"Voomi Supply","version":"1.0","type":"link"}