{"product_id":"osg-7018000-spiral-point-sti-tap-3-8-24-unf-hss","title":"Osg 7018000 Spiral Point Sti Tap 3\/8-24 Unf Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 7018000 is a spiral point STI tap designed for threading 3\/8-24 UNF holes in a push-through tapping application. Built from high-speed steel with a bright uncoated finish, this plug chamfer tap is suited for through-hole tapping where chips are pushed ahead of the cutting edges and clear the workpiece. With 3 flutes and an H2 thread limit, it produces consistent, accurate threads in steel, aluminum, and similar machinable materials. Overall length is 2-15\/16 inches with a thread length of 1-1\/4 inches, making it a compact, general-purpose tap for production and maintenance work.\u003c\/p\u003e\u003cp\u003eThis tap is used in machining, maintenance, and fabrication environments where UNF threads must be cut or chased in through-hole applications. The spiral point geometry makes it well suited for CNC tapping centers and drill presses where chip control in a through-hole configuration is a priority. It is commonly used by machinists, tool-and-die makers, and maintenance technicians working on threaded inserts, fixtures, and general metalwork requiring fine-pitch unified threads.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward through the hole for clean through-hole tapping\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction provides good wear resistance across common metals\u003c\/li\u003e\n\u003cli\u003ePlug chamfer with 3 flutes for balanced cutting action and thread lead-in\u003c\/li\u003e\n\u003cli\u003eH2 thread limit ensures close dimensional control on finished thread form\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for use with standard cutting fluids\u003c\/li\u003e\n\u003cli\u003eSTI (Screw Thread Insert) configuration for tapping holes that will accept helical coil inserts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for cutting 3\/8-24 UNF screw thread insert (STI) threads in through-hole applications across a range of machinable ferrous and non-ferrous metals.\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 tapping procedures and cutting fluid selection. Secure the workpiece fully before tapping and ensure proper alignment to avoid tap breakage. Use an appropriate cutting fluid for the material being tapped. Never reverse a spiral point tap aggressively under load; follow the tapping equipment manufacturer's speed recommendations for the material and tap size.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-24 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\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: 2-15\/16 inches (3.161 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-1\/4 inches (0.881 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.323 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.406 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: 0.08 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: 7018000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739790901554,"sku":"7018000","price":60.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/940f3e8cf8a26b3be182b7a2efae15f4.jpg?v=1788818903","url":"https:\/\/voomisupply.com\/products\/osg-7018000-spiral-point-sti-tap-3-8-24-unf-hss","provider":"Voomi Supply","version":"1.0","type":"link"}