{"product_id":"spi-34-294-9-plug-thread-gage-1-2-28-6h-no-go","title":"Spi 34-294-9 Plug Thread Gage 1\/2-28 6H No Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 34-294-9 is a single-end No Go plug thread gage used to verify internal thread quality on 1\/2-28 threaded holes to the 6H tolerance class. When a No Go gage enters the thread beyond two turns, the thread is out of tolerance and the part fails inspection. Machined from steel for durability and dimensional stability, this gage conforms to ANSI standards and ships with a NIST traceability certification. A size 2 handle is required for use but is sold separately. This tool is used by machinists, quality technicians, and precision manufacturing inspectors on production and receiving inspection lines.\u003c\/p\u003e\n\u003cp\u003eThe 34-294-9 is suited for inspection of 1\/2-28 internal threads in aerospace, automotive, firearms, and general precision manufacturing applications. The 6H tolerance class is a standard fit used widely in metric-style unified thread inspection. This gage is appropriate for both incoming inspection of threaded components and in-process quality checks on CNC-machined parts. It is typically used alongside a matching Go gage to complete a full pass-fail thread verification.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNo Go member only — confirms upper thread tolerance limit for 1\/2-28 6H threads\u003c\/li\u003e\n  \u003cli\u003eSteel construction for long-term dimensional stability under repeated use\u003c\/li\u003e\n  \u003cli\u003eNIST traceability certification included for calibration documentation requirements\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI thread gage standards\u003c\/li\u003e\n  \u003cli\u003eSingle-end design — size 2 handle required, sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for inspection of 1\/2-28 internal threads to the 6H tolerance class per ANSI standards. Compatible with standard size 2 thread gage handles sold separately.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread gages are precision inspection tools and should be handled carefully to avoid dropping or contact with abrasive surfaces. Store in a protective case when not in use to preserve calibration. Apply a light thread gage lubricant before use to reduce wear and protect the gage member. Periodic recalibration against a certified master is recommended to maintain traceability to NIST standards.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Class\u003c\/strong\u003e: 6H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Type\u003c\/strong\u003e: No Go\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Configuration\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Size\u003c\/strong\u003e: 2 (not included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTraceability Certification\u003c\/strong\u003e: NIST\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, NIST\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 34-294-9\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51700731543858,"sku":"34-294-9","price":153.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/671a67570d00c670d57189399b0d5335.jpg?v=1788394494","url":"https:\/\/voomisupply.com\/products\/spi-34-294-9-plug-thread-gage-1-2-28-6h-no-go","provider":"Voomi Supply","version":"1.0","type":"link"}