{"product_id":"osg-1752008-spiral-flute-tap-4-40-unc-ticn-coated","title":"Osg 1752008 Spiral Flute Tap 4-40 Unc Ticn Coated","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1752008 is a spiral flute tap designed for threading 4-40 UNC internal threads in demanding materials. It features a modified bottoming chamfer, two right-hand spiral flutes with a 15-degree helix angle, and a TICN (titanium carbon nitride) coating applied over a powdered metal substrate. The H2 thread limit ensures a 2B\/3B class of fit. The tap measures 1-7\/8 inches overall length with a shank diameter of 0.255 inches. Licensed machinists and tool-and-die professionals install this tap in CNC and manual tapping applications where close-tolerance thread production is required in difficult-to-machine alloys.\u003c\/p\u003e\n\u003cp\u003eThe OSG 1752008 is suited for threading operations in alloy steel, stainless steel, hardened steel, titanium, and high-nickel alloys. The spiral flute geometry evacuates chips up and out of blind or through holes, making it effective in interrupted-cut and short-chipping material conditions. Modified bottoming chamfer allows threading closer to the bottom of a blind hole than a standard plug or taper tap, a common requirement in precision machined components for aerospace, automotive, and industrial applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 UNC thread form, right-hand thread direction, H2 thread limit for 2B\/3B class of fit\u003c\/li\u003e\n  \u003cli\u003eTICN coating improves wear resistance and lubricity in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003ePowdered metal construction provides a finer grain structure compared to standard HSS for improved toughness\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer allows threading close to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003e15-degree right-hand helix angle promotes upward chip evacuation in spiral flute geometry\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design; compatible with external cutting fluid application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for tapping 4-40 UNC threads in alloy steel, stainless steel, hardened steel, titanium, and high-nickel alloy workpieces. Part of the OSG EXOTAP Series 313.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists or tooling technicians in machine tool or hand-tapping setups. Ensure the workpiece is securely fixtured and the tap is properly aligned with the drilled hole before engagement. Use a cutting fluid appropriate for the workpiece material to extend tap life and improve thread finish. Never reverse a broken tap using force; consult proper tap extraction procedures to avoid workpiece damage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\/3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\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: 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-7\/8 inches (1.875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.157 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: 1.181 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.11 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Powdered Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TICN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eSeries\u003c\/strong\u003e: EXOTAP 313\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: 1752008\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51748054139186,"sku":"1752008","price":77.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a0388afde10024e8704853ab6f8b44f6.jpg?v=1788888508","url":"https:\/\/voomisupply.com\/products\/osg-1752008-spiral-flute-tap-4-40-unc-ticn-coated","provider":"Voomi Supply","version":"1.0","type":"link"}