{"product_id":"osg-1305712208-spiral-flute-tap-3-8-16-unc-ticn-coated","title":"Osg 1305712208 Spiral Flute Tap 3\/8-16 Unc Ticn Coated","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1305712208 is a spiral flute tap designed for cutting internal 3\/8-16 UNC right-hand threads in demanding ferrous and exotic materials. Built from powdered metal and finished with a TICN coating, this tap delivers extended tool life in applications where high heat and abrasion accelerate wear on standard tooling. The modified bottoming chamfer allows threading close to the bottom of blind holes. With a 10-degree helix angle and three right-hand spiral flutes, it effectively evacuates chips upward out of the hole, reducing the risk of chip packing in interrupted or deep-hole cuts. Qualified machinists, tool-and-die professionals, and maintenance mechanics rely on this tap for precision tapping operations where dimensional control and finish matter.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for threading blind and through holes in alloy steel, stainless steel, hardened steel, titanium, and high-nickel alloys. The 2B class of fit and H5 thread limit make it appropriate for standard commercial and industrial fastener applications requiring controlled tolerances. Typical use cases include production machining, maintenance and repair operations, and prototype work where consistent thread form in hard or gummy materials is required. No coolant-through capability is built in, so flood or external coolant delivery is used during tapping.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8-16 UNC thread form with H5 thread limit and 2B class of fit for controlled tolerance output\u003c\/li\u003e\n  \u003cli\u003eTICN coating increases surface hardness and reduces friction when cutting stainless, titanium, and high-nickel alloys\u003c\/li\u003e\n  \u003cli\u003ePowdered metal substrate provides uniform grain structure and improved wear resistance over conventional HSS\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer enables threading close to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eThree right-hand spiral flutes at a 10-degree helix angle promote upward chip evacuation\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction; compatible with standard CNC tapping cycles and rigid tapping heads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 3\/8-16 UNC internal threads in alloy steel, stainless steel, hardened steel, titanium, and high-nickel alloys. Part of the OSG EXOTAP VC-10TI series (Series 313TI), intended for difficult-to-machine materials where standard taps fail prematurely.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is intended for use by trained machinists and toolroom professionals. Secure the tap in a rigid tapping holder or synchronous tapping chuck sized for the 0.255-inch shank diameter before beginning any operation. Ensure the workpiece is firmly fixtured and the spindle is powered down before loading or removing tooling. Apply appropriate cutting fluid or flood coolant externally, as this tap does not have coolant-through capability; adequate lubrication is especially critical when threading stainless steel and titanium to prevent galling and tap breakage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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: 10 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: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Powdered Metal\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: Alloy Steel, Stainless Steel, Hardened Steel, Titanium, High-Nickel Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.996 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.4375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.286 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: 0.08 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: EXOTAP VC-10TI (313TI)\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: 1305712208\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743057215794,"sku":"1305712208","price":94.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0bb939c98ef4eb84d8ea8e7652902115.jpg?v=1788842043","url":"https:\/\/voomisupply.com\/products\/osg-1305712208-spiral-flute-tap-3-8-16-unc-ticn-coated","provider":"Voomi Supply","version":"1.0","type":"link"}