Kennametal 1113831 NR3094 KC850 Carbide Grooving Insert

Product Description

The KENNAMETAL 1113831 is a solid carbide grooving insert designed for external grooving and turning operations on CNC lathes and turning centers. Built to the NR insert style in the Top Notch series, it carries a KC850 grade designation and a CVD-applied multilayer coating of TiC, TiCN, and TiN for extended tool life in steel and cast iron applications. The insert features a 4.78 mm cutting width, a maximum depth of cut of 3.81 mm, and a full corner radius of 2.39 mm with a neutral rake geometry. This insert is installed by machinists and tooling technicians performing precision grooving work in production and job-shop environments.

The 1113831 is suited for grooving operations requiring consistent width control and a full radius profile at the groove bottom. The KC850 carbide grade with CVD coating performs across a broad range of steel and cast iron workpiece materials, making it applicable in both high-volume production and maintenance machining contexts. The Top Notch series toolholder system accepts this NR-style insert, and the right-hand orientation determines directional use at the machine. The metric insert size designation is 3094, and the MSC/Manufacturer cross-reference number is NR3094R/L.

Key Features

• Solid carbide construction with CVD-applied TiC, TiCN, and TiN multilayer coating for wear resistance
• 4.78 mm cutting width with a full corner radius of 2.39 mm for accurate groove profiles
• Maximum depth of cut of 3.81 mm, with a rated range of 3.00 mm to 4.00 mm
• Neutral rake geometry suited to stable, controlled grooving cuts
• KC850 grade rated for material grades C5 and C6, covering a wide range of steel and cast iron applications
• Right-hand insert orientation; part of the Top Notch series toolholder system

Compatibility

Designed for use with Top Notch series toolholders that accept the NR insert style. The MSC/Manufacturer cross-reference number is NR3094R/L. Verify toolholder bore and clamping configuration before installation.

Installation Notes

Insert replacement should be performed by a qualified machinist or tooling technician with the machine fully powered down and the spindle locked. Use the appropriate torque wrench and insert seating tool specified for the Top Notch clamping system to avoid seat damage. Inspect the toolholder pocket and clamping screw for wear before seating the new insert. Do not exceed the rated depth of cut range for this insert style.