{"product_id":"osg-1400126808-thread-forming-tap-1-4-20-unc-cobalt-ticn","title":"Osg 1400126808 Thread Forming Tap 1\/4-20 Unc Cobalt Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400126808 is a thread forming tap in the HY-PRO NRT series, designed for right-hand, blind hole threading in a 1\/4-20 UNC thread form. Unlike cutting taps, this modified bottoming style tap forms threads by displacing material rather than cutting chips, producing stronger threads with a better surface finish. Built from cobalt high-speed steel and coated with TiCN for improved wear resistance and heat tolerance, it handles demanding applications across a broad range of workpiece materials. The overall length is 2.5 inches, with a thread length of 0.594 inches and a tapping depth of 0.933 inches. Thread limit is H10. Intended for use by machinists and maintenance professionals in production and repair environments.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind hole threading in materials including alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. The modified bottoming chamfer — 2 to 2.5 chamfered threads — allows threading close to the bottom of a blind hole. The HY-PRO NRT series is engineered for use in applications where chip removal is a concern or where rolled threads are preferred for improved tensile strength. It is appropriate for use in both manual and CNC tapping operations where a 1\/4-20 UNC thread is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming (roll tap) design eliminates chips in blind hole applications\u003c\/li\u003e\n  \u003cli\u003eCobalt construction for increased heat and wear resistance over standard HSS\u003c\/li\u003e\n  \u003cli\u003eTiCN coating extends tool life in abrasive and hard materials\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer (2 to 2.5P) allows threading close to hole bottom\u003c\/li\u003e\n  \u003cli\u003eH10 thread limit for tight tolerance control\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design — suitable for standard tapping fluid or paste lubricant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for blind hole threading of 1\/4-20 UNC threads in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces. Material application codes P and N apply.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a specific tap drill size optimized for roll tapping — verify the correct drill diameter for the material and thread engagement percentage before use. Always apply an appropriate tapping fluid or cutting compound; thread forming generates higher torque than cutting taps, so use a torque-limiting tap holder when possible. Power down or disengage the spindle before repositioning the workpiece. Follow applicable shop safety procedures and manufacturer tool-life guidelines for cobalt tooling in hardened materials.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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: 20\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 to 2.5P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H10\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: 0.594 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.933 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\u003eSquare Size\u003c\/strong\u003e: 0.191 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.3125 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\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HY-PRO NRT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.033 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: 1400126808\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731103711538,"sku":"1400126808","price":41.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9e0a7535aeb52c331c9ab34d6077839_321f1cc8-c090-43da-a451-5356fd56c061.jpg?v=1788727003","url":"https:\/\/voomisupply.com\/products\/osg-1400126808-thread-forming-tap-1-4-20-unc-cobalt-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}