{"product_id":"kennametal-4109942-threading-insert-nt3l-kcu25-carbide","title":"Kennametal 4109942 Threading Insert NT3L KCU25 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4109942 is a carbide threading insert in the Top Notch series, designed for precision thread-cutting on both internal and external workpieces. It carries a KCU25 manufacturer grade with an AlTiN finish applied via PVD coating, which extends wear life in demanding cutting conditions. The insert runs a left-hand orientation and covers a partial profile 60-degree thread standard. External pitch range spans 1.25 to 4.00 mm (6 to 20 TPI), and internal pitch range spans 2.00 to 5.00 mm (5 to 12 TPI). Machinists and toolroom operators install this insert into compatible Top Notch toolholders on CNC lathes and threading centers.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for threading operations on a variety of materials where AlTiN PVD coating provides thermal resistance and surface hardness. The left-hand designation makes it appropriate for left-hand thread applications or specific machine orientations requiring reverse-cut tooling. It is used in both production and job-shop environments on CNC turning equipment. The NT3L insert style fits Top Notch series toolholders sized for Insert Size 3. Internal and external thread capability in a single insert reduces tooling changeovers on multi-thread jobs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCarbide substrate with AlTiN finish via PVD coating for extended tool life\u003c\/li\u003e\n  \u003cli\u003ePartial profile 60-degree thread standard covers a wide TPI and pitch range\u003c\/li\u003e\n  \u003cli\u003eLeft-hand insert orientation for reverse-cut and left-hand thread applications\u003c\/li\u003e\n  \u003cli\u003eExternal pitch: 1.25 to 4.00 mm (6 to 20 TPI); Internal pitch: 2.00 to 5.00 mm (5 to 12 TPI)\u003c\/li\u003e\n  \u003cli\u003eNT3L style fits Top Notch series toolholders, Insert Size 3\u003c\/li\u003e\n  \u003cli\u003eIncluded angle of 60 degrees, corner radius 0.17 mm (0.0067 inches)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Top Notch series toolholders accepting NT Insert Style, Insert Size 3, left-hand configuration, as specified by the manufacturer for this product series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before seating or removing the insert. Use the correct torque wrench and manufacturer-specified clamping hardware for Top Notch toolholders to ensure proper insert retention without over-stress. Inspect the insert pocket for chips or damage before installation, and verify insert orientation matches the required thread hand before resuming cutting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NT3L\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: KCU25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: AlTiN\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\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal and External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Pitch\u003c\/strong\u003e: 1.25 to 4.00 mm (6 to 20 TPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Pitch\u003c\/strong\u003e: 2.00 to 5.00 mm (5 to 12 TPI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.17 mm (0.0067 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip to Top of Insert\u003c\/strong\u003e: 0.0980 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 4.95 mm (0.1950 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 9.3 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 4 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.3 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.025 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\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: 4109942\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51731468484914,"sku":"4109942","price":227.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/af3dd1ce9ebb9cf4deb0070ac16b87ea.jpg?v=1788731468","url":"https:\/\/voomisupply.com\/products\/kennametal-4109942-threading-insert-nt3l-kcu25-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}