Kennametal 1114341 Grooving Insert NGD3189K KC730 Left Hand

Product Description

The KENNAMETAL 1114341 is a solid carbide grooving insert designed for precision external and internal grooving operations on CNC lathes and turning centers. Carrying the KC730 manufacturer grade with a PVD-applied TiN coating, this left-hand insert delivers consistent performance on steel, cast iron, and non-ferrous materials graded C2, C3, and C4. The insert measures 4.80 mm (0.189 inches) in cutting width and provides a maximum depth of cut of 6.35 mm (0.250 inches). A positive rake angle of 10 degrees and the K chip breaker geometry support controlled chip evacuation in tight-tolerance grooving applications. Machinists and CNC turning specialists are the primary users of this insert.

This insert fits the Top Notch series tooling system and is suited for production turning environments where repeatable groove geometry is required. The left-hand orientation makes it appropriate for right-to-left grooving passes and specific toolholder configurations that call for this hand designation. With an included angle of 55 degrees and a corner radius of 0.57 mm (0.0225 inches), the insert handles medium-depth groove profiles without full-radius geometry. It is applicable across general-purpose metal removal in both job-shop and high-volume manufacturing settings.

Key Features

• KC730 carbide grade with PVD TiN coating for wear resistance on steel and cast iron
• 4.80 mm cutting width (0.189 inches) for consistent groove dimensioning
• Maximum depth of cut of 6.35 mm (0.250 inches), within a range of 5.00 mm to 10.00 mm
• Positive 10-degree rake angle with K chip breaker for reliable chip control
• Left-hand insert orientation for compatible Top Notch series toolholders
• Corner radius of 0.57 mm (0.0225 inches) for defined groove shoulder geometry

Compatibility

Designed for use with Top Notch series toolholders that accept the NGD3189K insert style in a left-hand configuration. Compatible with workpiece materials graded C2, C3, and C4.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or replacing the insert. Use the correct torx or hex key as specified by the toolholder manufacturer to achieve proper clamping without over-torquing the insert pocket screw. Verify insert seating and edge orientation before resuming cutting operations.