Kennametal 4050671 CNGP430 KCU10 Carbide Turning Insert

Product Description

The KENNAMETAL 4050671 is a solid carbide turning insert in the CNGP430 style, designed for precision metal cutting in CNC lathe and turning center applications. Finished with a TiAlN (titanium aluminum nitride) PVD coating and carrying the KCU10 grade designation, this insert delivers wear resistance and thermal stability across a range of demanding workpiece materials. The 80-degree diamond insert shape provides a strong cutting edge geometry suited for general turning, facing, and boring operations. With a 0.5-inch inscribed circle and a 0.004-inch corner radius, this insert fits KENNAMETAL KENLOC toolholders and offers up to four usable cutting edges per insert.

This insert is intended for use by machinists and CNC operators working in production turning environments. Primary workpiece materials include steel, stainless steel, superalloys, and titanium — material groups P, M, and S per ISO classification. The neutral hand orientation and negative rake angle make it suitable for rigid setups on conventional and CNC lathes. Typical applications include external turning, facing passes, and boring operations where consistent tool life and surface finish repeatability are required.

Key Features

• TiAlN PVD coating for improved oxidation resistance and tool life in steel and stainless applications
• 80-degree diamond (CNGP) insert shape with negative rake angle for strong, rigid cutting geometry
• Four usable cutting edges per insert for cost-effective tooling management
• 0.004-inch corner radius with honed cutting edge style for controlled edge strength
• Compatible with clamp and pin insert holding methods
• Multi-use application across turning, facing, and boring operations

Compatibility

Designed for use in KENNAMETAL KENLOC toolholding systems accepting CNGP-style inserts with a 0.5-inch inscribed circle. ISO code CNGP120401; industry standard number CNGP4302. Conforms to ANSI and ISO insert standards. Material grade classifications 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 indexing the insert. Ensure the insert pocket and seating surfaces are clean and free of chips before clamping. Follow the toolholder manufacturer's clamping torque specifications for the specific KENLOC holder in use.