{"product_id":"kennametal-1112898-threading-insert-nt4lk-kc730-carbide","title":"Kennametal 1112898 Threading Insert NT4LK KC730 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1112898 is a carbide threading insert in the NT4LK style, designed for both internal and external thread cutting operations. Running the KC730 manufacturer grade with a PVD-applied Titanium Nitride finish, this insert handles partial profile 60-degree thread forms on a wide pitch range: 1.25 to 6.25 mm (4 to 20 TPI) external and 2.00 to 6.25 mm (4 to 12 TPI) internal. The left-hand orientation and K chipbreaker geometry make it a purpose-built tool for left-hand threading applications in turning centers and CNC lathes. It belongs to the Top Notch series, a standard indexable threading platform used across production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for threading operations on ferrous and non-ferrous materials falling within material grades C2, C3, and C4. Typical applications include cutting unified and metric left-hand threads on shafts, couplings, fittings, and threaded components where right-hand thread engagement is not acceptable. The partial profile geometry allows a single insert to cover a range of pitches without requiring a dedicated insert per thread size, which reduces tooling inventory on mixed-production jobs. Machinists and CNC operators in industrial manufacturing, oilfield, and general machining environments are the primary users.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eKC730 carbide grade with PVD Titanium Nitride coating for extended wear resistance\u003c\/li\u003e\n  \u003cli\u003ePartial profile 60-degree included angle covers both unified and metric thread forms\u003c\/li\u003e\n  \u003cli\u003eLeft-hand insert orientation for left-hand thread cutting\u003c\/li\u003e\n  \u003cli\u003eK chipbreaker geometry for controlled chip evacuation during threading passes\u003c\/li\u003e\n  \u003cli\u003eExternal pitch range: 1.25 to 6.25 mm (4 to 20 TPI); internal pitch range: 2.00 to 6.25 mm (4 to 12 TPI)\u003c\/li\u003e\n  \u003cli\u003eTop Notch series platform for compatibility with standard NT-style toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Top Notch series NT-style threading toolholders that accept size 4 inserts. Compatible with internal and external threading applications across material grades C2, C3, and C4.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC tooling technicians. Power down and de-energize the machine spindle before indexing or replacing the insert. Seat the insert fully in the toolholder pocket and verify clamping torque per the toolholder manufacturer specification before running. Do not exceed the recommended depth-of-cut or feed rate for the insert grade, as threading inserts are not designed for radial turning loads.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NT4LK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC730\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C3, C4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Partial Profile 60 Degree\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal and External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Pitch Range\u003c\/strong\u003e: 1.25 to 6.25 mm (4 to 20 TPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Pitch Range\u003c\/strong\u003e: 2.00 to 6.25 mm (4 to 12 TPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip to Top of Insert\u003c\/strong\u003e: 0.1280 inches (3.25 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0067 inches (0.17 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.2551 inches (6.48 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.047 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1112898\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51755222597938,"sku":"1112898","price":297.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/96efc9b384548154d76c9c05cf7921e0.jpg?v=1788952355","url":"https:\/\/voomisupply.com\/products\/kennametal-1112898-threading-insert-nt4lk-kc730-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}