{"product_id":"spi-29-434-8-class-zz-plus-plug-gage-0-434-in","title":"Spi 29-434-8 Class Zz Plus Plug Gage 0.434 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-434-8 is a Class ZZ Plus plug gage used to verify bore and hole diameters to a precise tolerance of 0.0002 inches. Built from steel, this go\/no-go style gage gives machinists, quality control inspectors, and tool-room technicians a reliable method for checking whether a 0.4340-inch diameter hole meets drawing specifications. Class ZZ gages are the standard working gage grade for production inspection, offering practical accuracy without the added cost of tighter laboratory-grade classes. The compact form and light weight of 0.2 pounds make it easy to handle during high-volume inspection routines.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is suited for use in machine shops, manufacturing facilities, and tool rooms where bore diameter verification is part of standard quality control workflow. It is appropriate for checking drilled, reamed, or bored holes in steel, aluminum, plastic, and other common production materials. Typical users include CNC machinists, QC technicians, and tool-and-die makers performing first-article inspection or in-process checks on production runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.4340-inch nominal diameter for precise bore verification\u003c\/li\u003e\n  \u003cli\u003eClass ZZ Plus tolerance of 0.0002 inches for reliable go\/no-go inspection\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides durability and wear resistance in production environments\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.2 pounds for comfortable hand use during repetitive inspection tasks\u003c\/li\u003e\n  \u003cli\u003eSingle-piece package quantity simplifies procurement for individual gage needs\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 0.4340-inch diameter bores in general production and tool-room inspection applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are handled by quality control technicians and machinists and require no permanent installation. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the steel surface. Never force the gage into a hole; if resistance is felt, the bore is undersized and should be reworked before re-inspection. Store in a protective case away from heat sources and abrasive materials to maintain calibration integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Class\u003c\/strong\u003e: ZZ Plus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.4340 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance\u003c\/strong\u003e: 0.0002 inches\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: 29-434-8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51690603118898,"sku":"29-434-8","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/726e8d4a17a780f49d721eff03f14dee.jpg?v=1788272453","url":"https:\/\/voomisupply.com\/products\/spi-29-434-8-class-zz-plus-plug-gage-0-434-in","provider":"Voomi Supply","version":"1.0","type":"link"}