{"product_id":"spi-29-865-3-class-zz-plus-plug-gage-0-865-in","title":"Spi 29-865-3 Class Zz Plus Plug Gage 0.865 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-865-3 is a Class ZZ Plus plug gage designed to verify the dimensional accuracy of drilled, reamed, or bored holes with a nominal diameter of 0.865 inches. Built from steel, this go\/no-go style gage delivers a tolerance of 0.0002 inches, meeting Class ZZ Plus standards for general-purpose inspection in production and maintenance environments. Machinists, quality technicians, and toolroom professionals use plug gages like this to confirm hole size conformance without relying on indirect measuring instruments. The 29-865-3 is a straightforward, reliable attribute gage suited for shop-floor verification work.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is appropriate for use in metalworking, machining, and fabrication settings where hole diameter verification is a routine part of quality control. It is used to check holes produced by drilling, boring, or reaming operations in both light manufacturing and heavy industrial applications. The compact, lightweight form factor makes it easy to handle at the workpiece. A single-piece unit at this diameter class is common in job shops, production lines, and maintenance repair operations that require quick, repeatable go\/no-go checks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ Plus tolerance rating of 0.0002 inches for reliable attribute inspection\u003c\/li\u003e\n  \u003cli\u003eNominal measurement diameter of 0.865 inches\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in shop-floor conditions\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.2 pounds for easy single-hand use\u003c\/li\u003e\n  \u003cli\u003eSingle-piece package quantity for individual toolroom or production use\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-purpose hole inspection at 0.865 inches nominal diameter. Compatible with any application requiring attribute-style go\/no-go verification at this diameter and tolerance class.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are used by machinists and quality control technicians and require no installation. Before use, clean both the gage and the hole being checked to remove chips, coolant, and debris that can affect readings. Do not force the gage through a hole; excessive force can damage the gage or the workpiece and will produce unreliable results. Store the gage in a protective case away from moisture and temperature extremes to maintain calibration integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Diameter\u003c\/strong\u003e: 0.865 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 (mm)\u003c\/strong\u003e: 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\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: 29-865-3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51693646020914,"sku":"29-865-3","price":16.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9be3466824c6819f2483984da7aad9de.jpg?v=1788315434","url":"https:\/\/voomisupply.com\/products\/spi-29-865-3-class-zz-plus-plug-gage-0-865-in","provider":"Voomi Supply","version":"1.0","type":"link"}