{"product_id":"osg-1400104405-thread-forming-tap-3-56-unf-cobalt-tin","title":"Osg 1400104405 Thread Forming Tap 3-56 Unf Cobalt Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400104405 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads without cutting chips. Sized for 3-56 UNF right-hand threads, this tap produces clean, strong threads by displacing material rather than removing it, which eliminates chip-related tap breakage in blind-hole applications. The tap is manufactured from cobalt high-speed steel for elevated heat and wear resistance, and carries a titanium nitride (TiN) coating that further extends tool life in demanding materials. With a modified bottoming chamfer of 2 to 2.5 threads, it is optimized for threading close to the bottom of a blind hole. Licensed machinists and tool-and-die technicians working in precision fabrication and MRO environments are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind hole threading in a range of metals across residential, commercial, and industrial manufacturing settings. Its material application includes alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel, making it a versatile choice for machine shops, maintenance departments, and production environments where 3-56 UNF threads are required in tight-depth bores. The HY-PRO NRT series is engineered for use without coolant-through tooling, relying on the forming process itself to reduce heat buildup at the cutting zone.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming (chipless) design eliminates chip packing in blind holes\u003c\/li\u003e\n  \u003cli\u003eCobalt HSS construction for superior hardness and heat resistance\u003c\/li\u003e\n  \u003cli\u003eTiN coating extends tool life and reduces friction during forming\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer (2 to 2.5 threads) for threading close to hole bottom\u003c\/li\u003e\n  \u003cli\u003eRight-hand, 3-56 UNF thread profile with H3 thread limit and 2B class of fit\u003c\/li\u003e\n  \u003cli\u003eCompatible with alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for blind hole threading applications requiring 3-56 UNF right-hand threads with a 2B class of fit and H3 thread limit. Suitable for use in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces (material application codes P and N).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a properly sized forming tap drill hole, which is larger than a cutting tap drill size for the same thread — consult the appropriate tap drill chart before drilling. Power down and secure the workpiece before tapping operations. Use a tapping fluid or cutting oil appropriate for the workpiece material to reduce forming pressure and protect the tap. This tap does not use coolant-through delivery, so external lubrication is essential in production use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3-56\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 56\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\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\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\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: TiN (Titanium Nitride)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.813 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.496 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.535 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.110 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\u003eCoolant Through\u003c\/strong\u003e: No\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: 0.005 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: 1400104405\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51750688457010,"sku":"1400104405","price":42.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9e0a7535aeb52c331c9ab34d6077839_f18cf932-df74-42f0-b0f2-73853937091d.jpg?v=1788918469","url":"https:\/\/voomisupply.com\/products\/osg-1400104405-thread-forming-tap-3-56-unf-cobalt-tin","provider":"Voomi Supply","version":"1.0","type":"link"}