{"product_id":"spi-29-910-7-class-zz-plus-plug-gage-0-91-inch","title":"Spi 29-910-7 Class Zz Plus Plug Gage 0.91 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 29-910-7 is a Class ZZ Plus plug gage designed for precision hole measurement in machine shops, quality control labs, and manufacturing environments. Built to a tolerance of 0.0002 inches, this go\/no-go style gage confirms whether a drilled or reamed hole at 0.91 inches diameter falls within acceptable limits. The steel construction provides durability and dimensional stability across repeated use cycles. Machinists, tool-and-die technicians, and QC inspectors rely on Class ZZ Plus gages for final inspection of production parts where tight tolerances are critical.\u003c\/p\u003e\n\u003cp\u003eThis plug gage is suited for inspecting 0.91 inch diameter holes in precision machined components across light manufacturing, aerospace part fabrication, automotive, and general metalworking applications. It is used at incoming inspection stations, inline quality checks, and final acceptance inspection. The compact size makes it practical for both bench and floor inspection use. Single-piece packaging makes it straightforward to add to an existing gage kit or replace a worn gage in a set.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass ZZ Plus tolerance rating at 0.0002 inches for reliable go\/no-go inspection\u003c\/li\u003e\n  \u003cli\u003e0.91 inch nominal measurement diameter\u003c\/li\u003e\n  \u003cli\u003eSteel construction for dimensional stability and long service life\u003c\/li\u003e\n  \u003cli\u003eCompact, single-piece design fits standard gage holders and handles\u003c\/li\u003e\n  \u003cli\u003eSuitable for production inspection of drilled, reamed, or bored holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use plug gage for standard Class ZZ Plus gage handle systems accepting 0.91 inch diameter gage members.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlug gages are installed and used by machinists, metrology technicians, and QC inspectors. Before use, clean the gage and the hole being checked with a lint-free cloth to remove chips, oil, or debris that could affect measurement accuracy. Do not force the gage member into the hole, as this can damage the gage or the workpiece. Store the gage in a protective case away from other metal tools to prevent surface damage that would affect tolerance integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter of Measurement\u003c\/strong\u003e: 0.91 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: 29-910-7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51714552299826,"sku":"29-910-7","price":16.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/16a9d0e43f6dfca40b58ad3a00e648d9.jpg?v=1788503108","url":"https:\/\/voomisupply.com\/products\/spi-29-910-7-class-zz-plus-plug-gage-0-91-inch","provider":"Voomi Supply","version":"1.0","type":"link"}