{"product_id":"osg-1625012205-thread-forming-tap-1-2-20-unf-cobalt-ticn","title":"Osg 1625012205 Thread Forming Tap 1\/2-20 Unf Cobalt Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1625012205 is a thread forming tap designed for producing 1\/2-20 UNF internal threads without cutting, instead displacing material to create a stronger thread form. Built from cobalt high-speed steel and finished with a TiCN (Titanium Carbonitride) coating, this tap delivers extended tool life in demanding materials. It features a Modified Bottoming chamfer with 2.5 to 3 chamfered threads, making it suitable for threading close to the bottom of blind holes. With an overall length of 3.937 inches (100 mm) and a thread limit of H5, the 1625012205 is part of the OSG EXOPRO XPF series. Licensed machinists, tool-and-die makers, and maintenance technicians install this tap in CNC machining centers or manual tapping setups.\u003c\/p\u003e\n\u003cp\u003eThis tap is rated for use in a wide range of materials including aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloys, and titanium. It supports both blind hole and through-hole threading applications. The 3B class of fit and right-hand thread direction make it a standard choice for precision threading work in aerospace, automotive, and industrial maintenance environments where thread strength and dimensional accuracy are critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming (chipless) design produces stronger threads by displacing material rather than cutting\u003c\/li\u003e\n  \u003cli\u003eCobalt HSS construction provides heat and wear resistance in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eTiCN coating reduces friction and extends tool life across ferrous and non-ferrous applications\u003c\/li\u003e\n  \u003cli\u003eModified Bottoming chamfer (2.5 to 3 threads) allows threading close to blind hole bottoms\u003c\/li\u003e\n  \u003cli\u003eH5 thread limit ensures consistent 3B class of fit tolerances\u003c\/li\u003e\n  \u003cli\u003eRated for aluminum, stainless steel, titanium, high-nickel alloys, and multiple steel grades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for 1\/2-20 UNF blind hole and through-hole threading applications across material application codes P, M, N, and H, covering carbon steel, alloy steel, stainless steel, high-nickel alloys, titanium, and aluminum alloys.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or maintenance technician using a properly calibrated tapping chuck or CNC rigid tapping cycle. Since this is a thread forming tap, the correct tap drill size for the material and desired thread engagement percentage must be used — consult a thread forming tap drill chart before drilling the pilot hole. Do not use cutting-style tap lubricants designed for chip evacuation; use a forming-specific tapping fluid appropriate for the workpiece material. Verify spindle alignment before tapping to prevent 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: 1\/2-20 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\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: H5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 2.5 to 3 threads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.937 inches (100 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.767 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.929 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\u003eSquare Size\u003c\/strong\u003e: 0.275 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\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN (Titanium Carbonitride)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: EXOPRO XPF 16250\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Applications\u003c\/strong\u003e: Aluminum, Cast Aluminum, Carbon Steel, Alloy Steel, Die Steel, Hardened Steel, Stainless Steel, High-Nickel Alloy, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 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: 1625012205\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51755126292786,"sku":"1625012205","price":232.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/97a1414e31a570fbb064964d71eb3551_42e049db-9a25-4edf-b016-ba7ae6d2c5ee.jpg?v=1788951401","url":"https:\/\/voomisupply.com\/products\/osg-1625012205-thread-forming-tap-1-2-20-unf-cobalt-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}