{"product_id":"kennametal-1113908-grooving-insert-ng4125-kc850-carbide","title":"Kennametal 1113908 Grooving Insert NG4125 KC850 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1113908 is a solid carbide grooving insert designed for precision external grooving and parting operations on CNC lathes and turning centers. It carries the KC850 grade designation and features a CVD-applied multilayer coating of TiC, TiCN, and TiN for wear resistance and tool life across a range of workpiece materials. The insert has a left-hand cutting orientation, a 3.18 mm (0.1252 inch) cutting width, and a maximum depth of cut of 3.81 mm (0.1500 inch). It belongs to the Top Notch series, which uses a notch-style seat for positive insert retention. Machinists and CNC turning specialists install this insert in compatible Top Notch toolholders for grooving steel, cast iron, and similar materials classified under material grades C5 and C6.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for light to medium grooving applications in production turning environments, both job shop and high-volume. The NG4125 insert size fits Insert Seat Size 4 Top Notch holders. The neutral rake geometry combined with the 55-degree included angle and 0.19 mm corner radius make it appropriate for general-purpose grooving where chip control and dimensional accuracy are priorities. It is not configured for full-radius grooving. Typical applications include groove profiling, undercut work, and face grooving on steel and cast iron components in precision machining settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with KC850 grade designation for wear resistance in steel and cast iron\u003c\/li\u003e\n  \u003cli\u003eCVD multilayer coating: TiC, TiCN, and TiN for extended tool life\u003c\/li\u003e\n  \u003cli\u003eLeft-hand cutting orientation for specific toolholder and application requirements\u003c\/li\u003e\n  \u003cli\u003e3.18 mm cutting width with a maximum depth of cut range of 3.00 to 4.00 mm\u003c\/li\u003e\n  \u003cli\u003eTop Notch series notch-seat design for secure insert indexing and repeatable positioning\u003c\/li\u003e\n  \u003cli\u003e0.19 mm corner radius with neutral rake and 55-degree included angle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Top Notch series toolholders accepting Insert Seat Size 4 and NG-style inserts. Refer to KENNAMETAL Top Notch toolholder selection guides to confirm holder compatibility before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC tooling technician. The machine spindle must be stopped and all motion arrested before indexing or replacing the insert. Use the manufacturer-recommended torque wrench for the clamping screw to ensure proper seating in the Top Notch holder without over-torquing. Inspect the insert pocket and seating surface for chips or debris before installing a new insert, as contamination in the seat can cause deflection and premature edge failure.\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\u003eInsert Size\u003c\/strong\u003e: 4125\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: KC850\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Finish\u003c\/strong\u003e: TiC, TiCN, TiN\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: 3.18 mm (0.1252 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\u003eMaximum Depth 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\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\u003eLead Angle\u003c\/strong\u003e: 3 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Seat Size\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5, 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: 0.0507 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: 1113908\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51740530016562,"sku":"1113908","price":377.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/988dfb459aca01b2aa2d5854c0ae7e31.jpg?v=1788825723","url":"https:\/\/voomisupply.com\/products\/kennametal-1113908-grooving-insert-ng4125-kc850-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}