Iscar 5902369 Laydown Threading Insert 4 Tpi Api IC908

Product Description

The ISCAR 5902369 is a solid carbide laydown threading insert designed for external API thread-form cutting at 4 threads per inch (TPI). The insert features an IC908 manufacturer grade substrate with a PVD-applied TiAlN coating, delivering wear resistance and thermal stability across a broad range of workpiece materials. With a 5/8 inch (0.6250 inch) inscribed circle and a 0.251 inch thickness, this is a right-hand insert built to the 27ER style for use in compatible ISCARTHREAD toolholders. It is suited for machinists and tooling specialists working on oilfield and pipeline components requiring precise API thread profiles.

This insert is intended for external threading operations conforming to API thread standards, commonly encountered in oil and gas fabrication, pipe coupling work, and related industrial machining environments. The IC908 grade is rated for universal primary workpiece material compatibility, covering material codes H, K, M, N, P, and S, making it adaptable across steels, stainless alloys, cast irons, non-ferrous metals, high-temperature alloys, and similar materials. It is packaged individually and sold in single-unit quantities.

Key Features

• IC908 grade solid carbide substrate with PVD TiAlN coating for extended tool life
• Right-hand external thread orientation for standard API threading applications
• 4 TPI thread pitch for API-spec pipe and coupling profiles
• 5/8 inch inscribed circle (0.6250 inch) with 0.0382 inch corner radius
• Universal material compatibility across H, K, M, N, P, and S workpiece material codes
• Conforms to ISO 13399 tooling data standards

Compatibility

Designed as an OEM-style replacement insert for ISCARTHREAD series external threading toolholders accepting the 27ER insert style. Verify toolholder pocket geometry and clamping method before installation.

Installation Notes

This insert is installed by a machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before changing inserts. Seat the insert fully in the toolholder pocket and confirm the clamping screw torque is appropriate per the toolholder manufacturer specification. Inspect the insert seat and clamping components for wear or debris before installation to avoid seating errors that affect thread accuracy.