{"product_id":"kennametal-1799405-threading-insert-18-tpi-external-un","title":"Kennametal 1799405 Threading Insert 18 Tpi External Un","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1799405 is a carbide threading insert designed for external UN thread cutting at 18 threads per inch (TPI). It carries a TiAlN finish applied via PVD coating process, which improves wear resistance and tool life at elevated cutting temperatures. The insert is manufactured to the Top Notch series standard in grade KC5010, a coated carbide grade suited for threading steel and cast iron workpiece materials in the C3 and C4 material grade range. This insert is used by machinists and toolroom technicians running CNC lathes or manual threading operations that require consistent 60-degree included angle UN thread profiles.\u003c\/p\u003e\u003cp\u003eThe 1799405 is intended for external threading applications on right-hand threads conforming to the UN thread standard. It fits Top Notch series toolholders and is a standard replacement insert for production threading operations in metalworking environments, including job shops, aerospace component machining, and general manufacturing. The PVD TiAlN coating makes it appropriate for dry or semi-dry cutting conditions where thermal resistance is a priority.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiAlN PVD coating for extended tool life and heat resistance\u003c\/li\u003e\n\u003cli\u003e18 TPI external UN thread form with 60-degree included angle\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting orientation\u003c\/li\u003e\n\u003cli\u003eCarbide substrate in manufacturer grade KC5010 for C3 and C4 material applications\u003c\/li\u003e\n\u003cli\u003eTop Notch series insert style for secure clamping in compatible toolholders\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.0071 inches (0.18 mm) for controlled thread root geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Top Notch series threading toolholders accepting NTC3R insert style. Compatible with UN thread standard applications in material grades C3 and C4.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or toolroom personnel following standard insert indexing procedures for Top Notch series toolholders. Ensure the machine spindle is fully stopped and the toolholder is clear of the workpiece before seating or removing the insert. Verify torque on the clamping screw to the toolholder manufacturer specification and confirm insert seating is flush before resuming cuts. Inspect the insert edge condition regularly during production runs, as TiAlN-coated carbide inserts should be indexed or replaced at first signs of edge wear to maintain thread form accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NTC3R\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: KC5010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C3, C4\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: UN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Pitch\u003c\/strong\u003e: 18 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip to Top of Insert\u003c\/strong\u003e: 0.1480 inches (3.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0071 inches (0.18 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1949 inches (4.95 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0319 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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1799405\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51749227036978,"sku":"1799405","price":242.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3b41ec8bc413c3ca954fe754e5007952_c5210373-e233-4cc7-b6e3-a537b77d79fb.jpg?v=1788903363","url":"https:\/\/voomisupply.com\/products\/kennametal-1799405-threading-insert-18-tpi-external-un","provider":"Voomi Supply","version":"1.0","type":"link"}