{"product_id":"osg-1732808-spiral-flute-tap-5-16-18-unc-ticn-vanadium-hss","title":"Osg 1732808 Spiral Flute Tap 5\/16-18 Unc Ticn Vanadium Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1732808 is a spiral flute tap designed for cutting 5\/16-18 UNC right-hand internal threads in ferrous materials. It features a 45-degree helix angle that pulls chips up and out of the hole, reducing clogging in blind-hole applications. The tap is manufactured from vanadium high-speed steel for added wear resistance and is finished with a TICN (titanium carbonitride) coating that further extends tool life in demanding materials. The modified bottoming chamfer allows threading close to the bottom of blind holes. Machinists, tool-and-die workers, and maintenance technicians use this tap in CNC tapping cycles and hand-tapping setups alike. It carries a 3B class of fit and an H3 thread limit for standard tolerance threaded holes.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for use in stainless steel, high-carbon steel, low-carbon steel, and medium-carbon steel workpieces. The modified bottoming style makes it particularly effective in blind-hole operations where full thread depth near the bottom is required. The TICN coating and vanadium HSS construction make it a practical choice for production environments where tool wear from harder steels is a concern. It is used in both manual and CNC tapping applications across machining, fabrication, and maintenance trades.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-18 UNC thread form with right-hand thread direction and 3B class of fit\u003c\/li\u003e\n  \u003cli\u003e45-degree right-hand spiral flute helix pulls chips out of blind holes during tapping\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer allows threading to near the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eVanadium high-speed steel construction provides improved toughness and wear resistance over standard HSS\u003c\/li\u003e\n  \u003cli\u003eTICN coating reduces friction and extends tool life in stainless and carbon steels\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit for consistent tolerance control on standard 3B fit threaded holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 5\/16-18 UNC threads in stainless steel, high-carbon steel, low-carbon steel, and medium-carbon steel. Part of the OSG EXOTAP VA3 series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is intended for use by machinists and qualified trade professionals operating drill presses, CNC machining centers, or hand-tapping equipment. Always ensure the workpiece is securely clamped and the tap is properly aligned before beginning the tapping cycle. Use an appropriate cutting fluid or tapping compound for the workpiece material to reduce heat and extend tap life. Inspect the tap for wear or chipping before each use and replace if thread form shows signs of degradation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 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: 18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TICN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Stainless Steel, High-Carbon Steel, Low-Carbon Steel, Medium-Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-23\/32 inches (3.375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.445 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.367 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.933 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.238 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.048 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: EXOTAP VA3\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1732808\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731183763762,"sku":"1732808","price":64.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a57feae9214cade317c10f117f94d60d.jpg?v=1788728041","url":"https:\/\/voomisupply.com\/products\/osg-1732808-spiral-flute-tap-5-16-18-unc-ticn-vanadium-hss","provider":"Voomi Supply","version":"1.0","type":"link"}