Kennametal 1114854 Grooving Insert KC850 Carbide Left Hand

Product Description

The KENNAMETAL 1114854 is a solid carbide grooving insert in the Top Notch series, designed for precision external grooving and parting operations on CNC lathes and turning centers. It carries a CVD-applied TiC, TiCN, and TiN multilayer coating under the KC850 manufacturer grade, which targets steel and cast iron applications requiring wear resistance and thermal stability. The insert delivers a 0.25 inch (6.35 mm) cutting width, a maximum depth of cut of 0.25 inch (6.35 mm), and a positive rake angle of 10 degrees. A corner radius of 0.0225 inch (0.57 mm) and a K-style chip breaker round out the cutting geometry. This insert is sold individually but requires a minimum order of five units.

This insert is suited for left-hand grooving operations in light to medium material removal applications. The KC850 grade with multilayer CVD coating performs reliably in continuous and mildly interrupted cuts in steel and cast iron at moderate to high cutting speeds. It fits Top Notch series toolholders using an insert seat size 4 designation. Machinists and CNC operators in production shops and job shops will find this insert appropriate for shaft grooving, undercut work, and O-ring groove applications where consistent width and depth control are critical.

Key Features

• CVD multilayer TiC, TiCN, and TiN coating for wear resistance and thermal protection
• KC850 carbide grade rated for C5 and C6 material classifications
• 0.25 inch cutting width with maximum depth of cut range of 0.20 to 0.30 inches (5.00 to 10.00 mm)
• Positive rake angle of 10 degrees reduces cutting forces on workpiece
• K-style chip breaker promotes controlled chip evacuation in grooving operations
• Left-hand insert orientation for specific toolholder and approach configurations

Compatibility

Designed for use with Top Notch series grooving toolholders accepting insert seat size 4 and the NG insert style designation. Consult the KENNAMETAL Top Notch toolholder catalog to confirm holder compatibility before installation.

Installation Notes

This insert is installed and replaced by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before changing any insert. Seat the insert fully into the Top Notch holder pocket and verify the clamping mechanism is secure before initiating a cut. Do not exceed the recommended depth of cut range for the KC850 grade in the given workpiece material.