Kennametal 2404458 Carbide Thread Mill Insert 2mm Iso

Product Description

The KENNAMETAL 2404458 is a carbide thread mill insert engineered for precision internal threading operations. Manufactured in the STN insert style and coated with TiAlN via a PVD process, this insert delivers wear resistance and thermal stability in demanding cutting environments. It is designed for ISO thread standard applications with a 2mm pitch, making it a reliable choice for machinists and tool and die professionals running thread milling cycles on CNC machining centers. The inscribed circle measures 3/8 inch (0.375 inches) in diameter, placing it in a standard sizing tier for thread mill toolholders.

This insert is suited for internal ISO thread milling on ferrous and non-ferrous workpieces in production and job shop environments. The KC635M grade is a PVD-coated carbide grade intended for applications requiring consistent edge integrity and coating adhesion over extended run times. Machinists working with tapping alternatives or thread interpolation strategies on vertical or horizontal machining centers will find this insert a direct fit for compatible STN-style thread mill bodies.

Key Features

• STN insert style for use with compatible thread mill toolholders
• KC635M carbide grade with PVD-applied TiAlN coating for wear and heat resistance
• 2mm pitch for ISO internal threading applications
• Inscribed circle of 3/8 inch (0.375 inches) for standard toolholder compatibility
• Non-conical geometry for consistent thread form in through and blind-hole applications

Compatibility

Designed for use with STN-style thread mill toolholders accepting a 3/8 inch (0.375 inch) inscribed circle insert. Specific toolholder compatibility should be verified against the KENNAMETAL STN insert series documentation.

Installation Notes

Thread mill inserts should be installed by a qualified machinist or tooling technician using the correct torque wrench and insert screw for the toolholder. Ensure the spindle is fully stopped and the machine is in a safe state before changing inserts. Verify insert seating and clamping before running a threading cycle. Consult the toolholder manufacturer specifications for clamping torque and insert orientation requirements.