Kennametal 1114924 Grooving Insert KC850 Carbide Left Hand

Product Description

The KENNAMETAL 1114924 is a solid carbide grooving insert in the Top Notch series, designed for precision grooving operations on CNC lathes and turning centers. It carries the NGD3094K geometry with a KC850 grade substrate and a CVD-applied multilayer coating of TiC, TiCN, and TiN. The insert is left-hand oriented with a 2.39 mm cutting width and a maximum depth of cut of 6.35 mm. The positive rake angle of 10 degrees and the K chip breaker geometry support controlled chip flow in medium to finishing grooving passes. This insert is installed and changed by CNC machinists and toolroom professionals working on turning applications.

This insert is suited for external and internal grooving on turned components where dimensional accuracy and surface finish are critical. The KC850 grade, with its CVD multilayer coating, is optimized for steel and alloy steel workpieces in the C5 and C6 material grade ranges. The Top Notch series toolholder system provides repeatable seating for consistent cut depth and width. The included angle of 55 degrees and a corner radius of 0.19 mm make it appropriate for grooving profiles that require a near-full-radius or defined-corner groove geometry without a full-radius tip.

Key Features

• CVD multilayer coating: TiC, TiCN, and TiN for wear resistance and thermal stability
• 2.39 mm cutting width with a maximum depth of cut of 6.35 mm
• Left-hand insert orientation for correct engagement in NGD-style Top Notch toolholders
• Positive 10-degree rake angle with K chip breaker for controlled chip formation
• Corner radius of 0.19 mm and 55-degree included angle for defined groove geometry
• KC850 carbide grade rated for C5 and C6 material classifications

Compatibility

Designed for use in Top Notch series NGD-style toolholders that accept the 3094 insert size. Compatible with C5 and C6 material grade workpieces including steels and alloy steels. Verify toolholder hand orientation matches this left-hand insert before installation.

Installation Notes

Installation should be performed by a qualified machinist with the machine in a full stop and locked-out condition before insert change. Seat the insert firmly into the Top Notch toolholder pocket and torque the clamping screw to the toolholder manufacturer specification. Inspect the insert seat and clamping surfaces for chips or debris before seating to ensure proper support and avoid insert fracture. Do not exceed the rated maximum depth of cut of 6.35 mm during operation.