{"product_id":"kennametal-1818841-grooving-insert-nr4094k-kc5025-tialn","title":"Kennametal 1818841 Grooving Insert NR4094K KC5025 Tialn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1818841 is a solid carbide grooving insert designed for precise grooving and parting operations on CNC lathes and turning centers. Manufactured to the Top Notch series standard, this insert carries the NR4094K style designation and is coated with TiAlN via a PVD process, providing strong wear resistance and thermal stability in demanding cutting environments. It features a 4.78 mm cutting width and a maximum depth of cut of 6.35 mm, with a full-radius geometry and a 2.39 mm corner radius. The positive rake angle of 10 degrees reduces cutting forces and promotes smooth chip flow. Machinists and CNC operators working in production turning applications select this insert for its consistent performance across a range of workpiece materials.\u003c\/p\u003e\u003cp\u003eThis insert is intended for use in left-hand grooving applications on turning centers and CNC lathes. It is suited to external grooving, profiling, and copy-turning operations where a full-radius insert profile is required. The KC5025 grade is formulated for steel, stainless steel, and similar materials in the C2 and C6 material grade ranges. The K chip breaker geometry assists in controlling chip formation during medium-to-finish grooving passes. It is sold individually but must be ordered in multiples of 5 per the manufacturer minimum order requirement.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiAlN coating applied via PVD process for improved wear resistance and heat tolerance\u003c\/li\u003e\n\u003cli\u003eFull-radius geometry with 2.39 mm corner radius for smooth groove profiles\u003c\/li\u003e\n\u003cli\u003e4.78 mm cutting width with maximum depth of cut of 6.35 mm\u003c\/li\u003e\n\u003cli\u003ePositive 10-degree rake angle reduces cutting forces and improves chip evacuation\u003c\/li\u003e\n\u003cli\u003eK chip breaker design controls chip formation in medium-to-finish grooving\u003c\/li\u003e\n\u003cli\u003eNR insert style compatible with Top Notch series toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Top Notch series grooving toolholders accepting NR-style inserts with a seat size of 4. Compatible with KC5025 grade applications in C2 and C6 material classifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer torque and clamping guidelines for the Top Notch system. Power down and lock out the machine spindle before changing or indexing inserts. Inspect the insert pocket and clamping components for wear or debris before seating a new insert to ensure proper support and accurate cutting geometry. Do not exceed the maximum depth of cut rating for this insert style.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NR\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: KC5025\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\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\u003eInsert Hand\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Width\u003c\/strong\u003e: 4.78 mm (0.1882 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 6.35 mm (0.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut Range\u003c\/strong\u003e: 5.00 mm to 10.00 mm (0.2000 to 0.3000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 2.39 mm (0.0941 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 10 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 4094\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Seat Size\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C6\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: 0.0551 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 1818841\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51752982675762,"sku":"1818841","price":401.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a0acb50f07b77ea4ef154eb9d8141de3.jpg?v=1788931838","url":"https:\/\/voomisupply.com\/products\/kennametal-1818841-grooving-insert-nr4094k-kc5025-tialn","provider":"Voomi Supply","version":"1.0","type":"link"}