Kennametal 2079654 Grooving Insert NG3189 KC5010 Carbide

Product Description

The KENNAMETAL 2079654 is a solid carbide grooving insert in the Top Notch series, designed for precision external grooving operations on CNC lathes and turning centers. Manufactured from carbide grade KC5010 with a PVD-applied TiAlN coating, this right-hand insert delivers a 4.8 mm (0.189 inch) cutting width and a maximum depth of cut of 3.81 mm (0.150 inch). The neutral rake geometry and 0.57 mm corner radius suit a range of workpiece materials and groove profiles. Machinists and CNC operators use this insert in production environments where consistent groove width and tool life are critical.

This insert is suited for external grooving and cutoff applications in both high-volume production and job-shop turning. The Top Notch insert style (NG, size 3189) fits compatible Top Notch toolholders. The TiAlN coating provides thermal resistance at elevated cutting speeds, making it appropriate for ferrous and non-ferrous materials graded C3 and C4. A right-hand cutting orientation means it advances from right to left relative to the workpiece. The 55-degree included angle and 3-degree lead angle are typical of standard Top Notch grooving geometry.

Key Features

• Solid carbide substrate, grade KC5010, with PVD TiAlN coating for thermal and wear resistance
• 4.8 mm (0.189 inch) cutting width for consistent, repeatable groove sizing
• Maximum depth of cut 3.81 mm (0.150 inch); effective range 3.00 mm to 4.00 mm
• Right-hand cutting orientation, neutral rake, 0.57 mm corner radius
• Top Notch series NG insert style, size 3189, for use with compatible Top Notch toolholders
• Material grade C3 and C4 coverage for broad workpiece material compatibility

Compatibility

Designed for use with Top Notch series toolholders accepting NG-style inserts, size 3189. The MSC/Manufacturer cross-reference number is NG3189R/L. Verify toolholder seat geometry and clamping system before installation.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the turret is indexed to a safe position before changing inserts. Inspect the toolholder pocket for chips or wear that could affect seating. Torque clamping screws to the toolholder manufacturer specification only - do not estimate.