{"product_id":"kennametal-4109803-grooving-insert-kcu25-solid-carbide-altin","title":"Kennametal 4109803 Grooving Insert KCU25 Solid Carbide Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4109803 is a solid carbide grooving insert in the Top Notch series, designed for precision grooving and parting operations on CNC lathes and turning centers. It carries the NG3094K insert designation with a KCU25 manufacturer grade and an AlTiN coating applied via PVD process, which provides elevated heat resistance and extended tool life in demanding cutting conditions. The insert delivers a 2.39 mm cutting width and a maximum depth of cut of 3.81 mm, making it well suited for shallow to medium-depth grooving passes in steel, stainless, and similar materials. It is a right-hand orientation insert held by a clamp-style toolholder.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for use in Top Notch series grooving toolholders and blade systems. It fits standard production turning applications in both job shop and high-volume machining environments. The KCU25 grade with AlTiN PVD finish is selected for interrupted cuts and materials that generate high cutting temperatures. Machinists and CNC programmers working with metric setups will find the specifications directly usable without conversion. The K chip breaker geometry is designed to manage chip formation during grooving and face grooving operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eKCU25 solid carbide grade with AlTiN PVD coating for heat and wear resistance\u003c\/li\u003e\n  \u003cli\u003e2.39 mm cutting width for precise groove geometry control\u003c\/li\u003e\n  \u003cli\u003eMaximum depth of cut 3.81 mm; depth of cut range 3.00 to 4.00 mm\u003c\/li\u003e\n  \u003cli\u003eK chip breaker geometry for controlled chip evacuation during grooving\u003c\/li\u003e\n  \u003cli\u003eRight-hand insert orientation with clamp-style holding method\u003c\/li\u003e\n  \u003cli\u003e0.19 mm corner radius for reduced stress concentration at groove base\u003c\/li\u003e\n  \u003cli\u003ePart of the Top Notch series for compatibility with Top Notch tooling systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in Top Notch series grooving toolholders and blades that accept NG-style inserts with an insert size designation of 3094. The manufacturer cross-reference number is NG3094R\/LK.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC toolroom technician. Ensure the machine spindle is stopped and the turret is fully indexed and locked before seating or removing the insert. Use the correct clamp and torque tool specified for Top Notch toolholders to secure the insert without cracking the carbide substrate. Verify insert orientation and depth stop settings before resuming cutting operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCU25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\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\u003eChip Breaker\u003c\/strong\u003e: K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Width\u003c\/strong\u003e: 2.39 mm (0.0941 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 3.81 mm (0.1500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDepth of Cut Range\u003c\/strong\u003e: 3.00 to 4.00 mm (0.1500 to 0.2000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Height\u003c\/strong\u003e: 8.74 mm (0.3440 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 4.98 mm (0.196 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.19 mm (0.0075 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 3094\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e: Metric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 4109803\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51748913807666,"sku":"4109803","price":254.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f95501a0f82bc2658f3effbbfd377c32.jpg?v=1788900045","url":"https:\/\/voomisupply.com\/products\/kennametal-4109803-grooving-insert-kcu25-solid-carbide-altin","provider":"Voomi Supply","version":"1.0","type":"link"}