{"product_id":"osg-1625001088-thread-forming-tap-1-8-unc-cobalt-ticn","title":"Osg 1625001088 Thread Forming Tap 1-8 Unc Cobalt Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1625001088 is a thread forming tap designed for high-torque cold-forming applications in demanding production environments. Part of the EXOPRO XPF Series 16250, it cuts no chips — instead displacing material to produce stronger, work-hardened internal threads. The tap is manufactured from cobalt high-speed steel for elevated heat resistance and is finished with a TiCN coating to reduce friction and extend tool life. It is configured to a Modified Bottoming chamfer with 2.5 to 3 chamfered threads, making it suitable for threading close to the bottom of blind holes. Overall length is 6.30 inches (160 mm) with a 1.25-inch thread length and a shank diameter of 0.80 inches. Thread limit is H8. Machinists, toolroom operators, and production floor technicians install this tool in standard CNC tapping cycles or rigid tapping setups.\u003c\/p\u003e\u003cp\u003eThis tap is used for producing 1-8 UNC, Class 3B internal threads in both blind hole and through-hole configurations. Its cobalt substrate and TiCN coating make it effective across a wide range of workpiece materials including aluminum, cast aluminum, carbon steel, alloy steel, die steel, stainless steel, hardened steel, high-nickel alloys, and titanium. It is suited to production machining environments where thread quality and tool life are priorities, particularly where chip evacuation in blind holes is a concern and cold-forming is preferred over cutting.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming (chipless) design produces work-hardened threads stronger than cut threads\u003c\/li\u003e\n\u003cli\u003eCobalt HSS construction provides heat and wear resistance beyond standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eTiCN coating reduces friction and galling, especially in stainless steel and high-nickel alloys\u003c\/li\u003e\n\u003cli\u003eModified Bottoming chamfer with 2.5 to 3 chamfered threads for threading close to blind hole bottoms\u003c\/li\u003e\n\u003cli\u003eH8 thread limit accommodates typical tolerance requirements for Class 3B fit\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, compatible with standard CNC tapping cycles\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement — operates with external coolant or cutting fluid\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for producing 1-8 UNC Class 3B internal threads in aluminum, cast aluminum, carbon steel, alloy steel, die steel, stainless steel, hardened steel, high-nickel alloys, and titanium workpieces in blind hole and through-hole applications per material application codes P, M, N, and H.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed in a rigid tapping holder or synchronized tapping chuck matched to the 0.80-inch shank diameter and 0.60-inch square drive. Verify spindle speed and feed rate against the workpiece material before starting — thread forming generates higher torque than cutting taps, so machine torque capacity must be confirmed. Apply appropriate tapping fluid or cutting oil before engaging the workpiece; do not run dry. Disengage machine power and secure the workpiece before any manual tap removal or tool change.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-8\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: 3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H8\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 3P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 8\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: 6.30 inches (160 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 2.99 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.80 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.60 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.8125 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\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: Aluminum, Cast Aluminum, Carbon Steel, Alloy Steel, Die Steel, Stainless Steel, Hardened Steel, High-Nickel Alloy, Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading, Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 16250 (EXOPRO XPF)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.905 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: 1625001088\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51732751089970,"sku":"1625001088","price":628.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/97a1414e31a570fbb064964d71eb3551_4193ac04-ed60-404d-951c-6c3430d680b2.jpg?v=1788746296","url":"https:\/\/voomisupply.com\/products\/osg-1625001088-thread-forming-tap-1-8-unc-cobalt-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}