{"product_id":"kennametal-4109653-grooving-insert-kcu25-solid-carbide-altin","title":"Kennametal 4109653 Grooving Insert KCU25 Solid Carbide Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4109653 is a solid carbide grooving insert designed for precision external grooving operations on CNC lathes and turning centers. Built to the NFD insert style within the Top Notch series, this right-hand insert features a cutting width of 0.125 inches (3.18 mm) and a maximum depth of cut of 0.250 inches (6.35 mm). The KCU25 grade substrate is coated with AlTiN via a PVD process, delivering heat resistance and edge durability when cutting steels, cast irons, and similar materials at moderate to high speeds. The clamp-style holding method provides rigid insert retention during interrupted cuts and high-feed passes. Installed by machinists and CNC operators in production turning environments.\u003c\/p\u003e\u003cp\u003eThis insert is suited for grooving applications in both production and job-shop turning operations. The single-end configuration and size 3 insert seat make it compatible with Top Notch series grooving toolholders requiring an NFD-style seat. Typical applications include external groove profiling, undercut operations, and plunge grooving on ferrous workpieces. The 55-degree included angle and 12-degree rake angle support chip control across a range of feed rates. The K-style chip breaker manages chip flow in medium-to-finish grooving passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction with KCU25 manufacturer grade for durability in ferrous machining\u003c\/li\u003e\n\u003cli\u003eAlTiN coating applied via PVD process for elevated heat resistance and extended tool life\u003c\/li\u003e\n\u003cli\u003e0.125 inch (3.18 mm) cutting width with 0.250 inch (6.35 mm) maximum depth of cut\u003c\/li\u003e\n\u003cli\u003eK-style chip breaker with 12-degree rake angle for controlled chip formation\u003c\/li\u003e\n\u003cli\u003eClamp-style insert holding for rigid, repeatable seating in Top Notch toolholders\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.0075 inches (0.19 mm) for precise groove geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in Top Notch series grooving toolholders accepting NFD-style inserts at insert seat size 3. The MSC and manufacturer cross-reference number is NFD3125R\/LK.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator with the machine spindle fully stopped and all motion axes locked out per the machine tool manufacturer lockout\/tagout procedure. Use the appropriate clamp and seat hardware specified for the Top Notch insert seat size 3 to ensure proper insert retention and repeatability. Inspect the insert pocket and clamping components for wear or debris before seating a new insert. Do not exceed the maximum depth of cut range specified for this insert to avoid premature edge failure or insert fracture.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NFD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCU25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C6\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\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Width\u003c\/strong\u003e: 0.1252 inches (3.18 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.2500 inches (6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut Range\u003c\/strong\u003e: 0.2000 to 0.3000 inches (5.00 to 10.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Height\u003c\/strong\u003e: 0.3440 inches (8.74 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 0.1960 inches (4.98 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0075 inches (0.19 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 12 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: 3125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Seat Size\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.001 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: 4109653\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51732941865266,"sku":"4109653","price":172.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/660cf3100e6e3262afe53041c4726e2a.jpg?v=1788749252","url":"https:\/\/voomisupply.com\/products\/kennametal-4109653-grooving-insert-kcu25-solid-carbide-altin","provider":"Voomi Supply","version":"1.0","type":"link"}