{"product_id":"kennametal-1799443-threading-insert-na4r5-kc5025-carbide","title":"Kennametal 1799443 Threading Insert NA4R5 KC5025 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1799443 is a carbide threading insert designed for cutting Acme-form threads at 5 threads per inch (TPI). It carries the KC5025 manufacturer grade and features a TiAlN finish applied via PVD coating, which improves wear resistance and heat tolerance during interrupted or continuous threading operations. The insert uses a 29-degree included angle and is configured for right-hand cutting. It fits the Top Notch insert series and is suited for both internal and external thread applications. Licensed HVAC and machining trade professionals will recognize this as a precision replacement insert for turning centers and manual lathes where Acme thread profiles are required.\u003c\/p\u003e\u003cp\u003eThis insert is intended for use in metal-cutting applications that demand accurate Acme thread geometry. The NA4R5 insert style is right-hand oriented and suitable for threading on CNC lathes or manual turning equipment. Insert size 4 and the Top Notch series designation determine toolholder compatibility. Material grades C2 and C6 indicate suitability for general-purpose machining, including cast iron, non-ferrous metals, and some steels. The TiAlN PVD coating extends tool life in dry or semi-dry cutting conditions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCarbide substrate with TiAlN PVD finish for extended wear resistance\u003c\/li\u003e\n\u003cli\u003e29-degree included angle for Acme thread standard geometry\u003c\/li\u003e\n\u003cli\u003e5 TPI internal and external thread capability in a single insert\u003c\/li\u003e\n\u003cli\u003eRight-hand cut orientation, Top Notch series toolholder compatible\u003c\/li\u003e\n\u003cli\u003eInsert size 4 with a tip-to-top height of 0.2020 inches (5.13 mm)\u003c\/li\u003e\n\u003cli\u003eCutting tip width of 0.0689 inches (1.75 mm) for precise thread form\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement threading insert for Top Notch series toolholders accepting size 4 inserts. Specific toolholder compatibility should be confirmed against KENNAMETAL Top Notch system documentation before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThreading inserts should be installed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before seating or removing any insert. Use the correct torque wrench and clamping screw specified by the toolholder manufacturer — do not overtighten, as carbide inserts are brittle and can crack under excessive clamping force. Inspect the insert pocket for debris or damage before seating a new insert.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NA4R5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC5025\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: TiAlN\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: Acme\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: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Pitch\u003c\/strong\u003e: 5 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 29 degrees\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: 0.2020 inches (5.13 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth of Cutting Tip\u003c\/strong\u003e: 0.0689 inches (1.75 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: 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291804\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 1799443\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51734629876018,"sku":"1799443","price":296.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/65a9b4f78bfd931e7c11f038ed24f59a.jpg?v=1788764054","url":"https:\/\/voomisupply.com\/products\/kennametal-1799443-threading-insert-na4r5-kc5025-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}