{"product_id":"spi-23-208-2-truncated-taperlock-thread-plug-gage-1-12-unf","title":"Spi 23-208-2 Truncated Taperlock Thread Plug Gage 1-12 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI 23-208-2 is a truncated taperlock thread plug gage used to verify the accuracy of 1-12 UNF internal threads. It includes both Go and No Go gaging members, allowing technicians to confirm that a threaded hole falls within the Class 2A tolerance range in a single setup. The gage is constructed from tool steel for dimensional stability and wear resistance. The 4-inch handle provides secure grip and consistent insertion force during inspection. This type of gage is standard tooling in precision machining, aerospace, and general manufacturing environments where thread conformance documentation is required.\u003c\/p\u003e\u003cp\u003eThis gage is suited for production floor inspection and quality-control verification of 1-12 UNF threaded bores. Class 2A is the most common tolerance class for general-purpose unified external threads, making this gage applicable across a wide range of fastener and assembly applications. It is typically used by machinists, quality technicians, and manufacturing engineers performing incoming inspection, in-process checks, or final part acceptance on components with 1-12 UNF internal thread features.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGo and No Go members included for complete Class 2A thread verification in one tool\u003c\/li\u003e\n\u003cli\u003eTruncated taperlock design for secure, repeatable seating in the handle\u003c\/li\u003e\n\u003cli\u003eTool steel construction resists wear during high-cycle production inspection\u003c\/li\u003e\n\u003cli\u003e4-inch handle length provides controlled insertion and comfortable grip\u003c\/li\u003e\n\u003cli\u003eCovers 1-12 UNF thread size for inch-series unified fine threads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard taperlock-style gage handles. Compatible with 1-12 UNF internal threaded components requiring Class 2A tolerance verification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread plug gages are hand-operated precision instruments and require no power source or mechanical installation. Ensure threaded bores are clean and free of chips or coolant before gaging to avoid false readings or gage damage. Handle the gaging members carefully to avoid dropping, which can alter calibration. Periodic recalibration against NIST-traceable masters is recommended to maintain measurement integrity per ASME B1.2 gage standards.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassification\u003c\/strong\u003e: 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGo\/No Go\u003c\/strong\u003e: Go and No Go\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGage Type\u003c\/strong\u003e: Truncated Taperlock Thread Plug Gage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.01 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.031 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 23-208-2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51689199960370,"sku":"23-208-2","price":582.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/63521f80482ef3f609b16f411ea4730c.jpg?v=1788256040","url":"https:\/\/voomisupply.com\/products\/spi-23-208-2-truncated-taperlock-thread-plug-gage-1-12-unf","provider":"Voomi Supply","version":"1.0","type":"link"}