Kennametal 2384529 Carbide Thread Mill Insert 16 Tpi

Product Description

The KENNAMETAL 2384529 is a carbide thread mill insert designed for precision internal threading operations. Manufactured to grade KC635M, this insert features a TiAlN coating applied via a PVD process, which provides high surface hardness and resistance to heat buildup during cutting. The insert is configured for UN thread standards at 16 teeth per inch (TPI) and carries an inscribed circle diameter of 0.625 inches (15.88 mm). It is used in CNC thread milling applications where consistent thread form, tool life, and surface finish are required. Machinists and tooling specialists in production and job shop environments are the primary installers of this insert.

This insert is suited for internal threading of UN-standard fastener threads in ferrous and non-ferrous workpiece materials. The STN insert style positions it for use in compatible Kennametal thread milling bodies designed to accept this geometry. It is appropriate for moderate to high-speed threading on machining centers equipped with helical interpolation capability. Applications include tapped hole production in components where thread milling is preferred over tapping due to tool life, hole size control, or material considerations.

Key Features

• KC635M carbide grade with TiAlN coating for extended tool life in threading applications
• PVD coating process delivers precise edge geometry retention
• 16 TPI configuration for UN internal thread standard
• STN insert style for compatibility with designated thread mill bodies
• Inscribed circle of 0.625 inches (15.88 mm)

Compatibility

Designed for use in Kennametal thread milling toolholders and bodies that accept the STN insert style. Verify holder compatibility using Kennametal tooling documentation before ordering.

Installation Notes

Thread mill insert installation should be performed by a qualified machinist or tooling technician. Power down and lock out the spindle before seating or replacing inserts. Use the appropriate torx or hex key torque driver as specified by the toolholder manufacturer — do not overtighten the clamping screw. Confirm correct insert orientation and seating before resuming machining operations.