{"product_id":"osg-1830800-spiral-point-sti-tap-8-32-unc-2-flute-hss","title":"Osg 1830800 Spiral Point Sti Tap 8-32 Unc 2 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1830800 is a spiral point STI tap designed for cutting 8-32 UNC threads in through-hole applications. STI (Screw Thread Insert) taps cut an oversize thread to accept helical wire inserts, which are used to repair damaged threads or create durable threaded holes in softer base materials. This tap features a plug chamfer, 2 flutes, and an H3 thread limit for consistent fit class control. Built from high-speed steel with a bright uncoated finish, it delivers reliable performance in general-purpose tapping operations. Overall length is 2.382 inches with a thread length of 0.511 inches. Machinists, maintenance technicians, and tool-and-die professionals are the primary users.\u003c\/p\u003e\u003cp\u003eThis tap is suited for tapping 8-32 UNC STI threads in a range of materials where standard tapping speeds and hand or machine tapping methods apply. The plug chamfer style makes it appropriate for through-hole tapping where the tap can pass completely through the workpiece. It is commonly used in maintenance and repair operations where helical coil inserts such as Heli-Coil style inserts are required to restore thread integrity in worn or damaged holes across aerospace, automotive, and general industrial applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSTI thread form cuts oversize thread to accept helical wire thread inserts\u003c\/li\u003e\n\u003cli\u003ePlug chamfer for through-hole tapping applications\u003c\/li\u003e\n\u003cli\u003eH3 thread limit for controlled fit class and consistent insert seating\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for general-purpose tapping in a broad range of workpiece materials\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for use with standard cutting fluids\u003c\/li\u003e\n\u003cli\u003e2-flute design promotes chip flow in through-hole tapping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in through-hole tapping operations requiring 8-32 UNC STI threads for helical wire insert installation. Compatible with standard hand tap wrenches and machine tapping setups accepting a 0.22-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed and operated by a qualified machinist or maintenance technician familiar with STI thread systems and helical insert procedures. Ensure the workpiece is securely fixtured before tapping and use an appropriate cutting fluid for the base material to extend tool life and improve thread quality. When machine tapping, verify spindle alignment to avoid tap breakage. Follow insert manufacturer drill size specifications before using this STI tap, as the required drill size differs from standard 8-32 tap drill sizes.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 8-32 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.382 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.511 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.22 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.28125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.024 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1830800\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51740472869170,"sku":"1830800","price":43.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f27d3c37f7fc920fc6b8261234ff4612.jpg?v=1788825235","url":"https:\/\/voomisupply.com\/products\/osg-1830800-spiral-point-sti-tap-8-32-unc-2-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}