{"product_id":"spi-29-357-1-class-zz-plus-plug-gage-0-357-in","title":"Spi 29-357-1 Class Zz Plus Plug Gage 0.357 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-357-1 is a Class ZZ Plus plug gage designed to verify the inside diameter of machined holes to a nominal size of 0.357 inches. Built from steel, it provides a reliable go\/no-go reference for quality control inspection in production and shop environments. The Class ZZ tolerance grade is suited for inspection of commercial-grade work where high-volume checking is required. With a tolerance of 0.0002 inches, this gage delivers consistent, repeatable measurement performance. Machinists, toolmakers, and quality technicians use plug gages like this to confirm hole size compliance quickly without complex measuring instruments.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is appropriate for use in machine shops, manufacturing facilities, and toolrooms where hole diameter verification is part of standard inspection workflow. It is commonly used on drilled, reamed, or bored holes in metal components during incoming inspection, in-process checks, or final quality verification. The compact size and steel construction make it durable for regular use on the shop floor.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal measurement diameter of 0.357 inches for precise hole gauging\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance grade suited for commercial inspection applications\u003c\/li\u003e\n  \u003cli\u003eTolerance of 0.0002 inches for consistent and repeatable go\/no-go checks\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in shop and production environments\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.2 pounds for easy handling during inspection\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 verifying machined holes with a nominal inside diameter of 0.357 inches in general manufacturing and inspection applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled and used by machinists, toolmakers, and quality control inspectors and require no installation in the traditional sense. Store the gage in a protective case when not in use to prevent damage to the gauging surface. Handle with clean, dry hands or cotton gloves to avoid corrosion from skin oils. Always clean the gage and the workpiece hole before use to ensure accurate measurement results.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Diameter\u003c\/strong\u003e: 0.357 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 (Metric)\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  \u003cli\u003e\n\u003cstrong\u003eGage Class\u003c\/strong\u003e: ZZ Plus\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: 29-357-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51722382803250,"sku":"29-357-1","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e2e93bea97770546fe53ee87b3652e07.jpg?v=1788590289","url":"https:\/\/voomisupply.com\/products\/spi-29-357-1-class-zz-plus-plug-gage-0-357-in","provider":"Voomi Supply","version":"1.0","type":"link"}