Iscar 5902437 Threading Insert 16 Tpi 1/2 in IC908

Product Description

The ISCAR 5902437 is a solid carbide laydown threading insert designed for internal UN thread cutting at 16 threads per inch (TPI). Finished with a PVD-applied TiAlN coating and manufactured to the IC908 grade, this insert delivers consistent thread form in a right-hand cutting orientation. With a 1/2 inch inscribed circle and a thickness of 0.188 inches, the 5902437 fits standard laydown-style threading toolholders and is suited for production threading applications across a wide range of workpiece materials. Licensed machinists and CNC turning specialists are the primary installers of this insert.

This insert is rated for universal primary workpiece material compatibility, covering material codes H, K, M, N, P, and S — spanning steels, stainless, cast iron, non-ferrous alloys, high-temperature alloys, and more. It conforms to ISO 13399 standards and belongs to the ISCARTHREAD series. The 22IR insert style positions this insert for internal threading operations in bore and pipe thread applications commonly found in precision machining, manufacturing, and industrial fabrication environments.

Key Features

• Solid carbide construction with PVD TiAlN coating for wear resistance across diverse materials
• IC908 manufacturer grade engineered for reliable performance in universal material groups
• Right-hand internal UN thread form at 16 TPI
• 1/2 inch inscribed circle fits standard 22IR-style laydown toolholders
• ISO 13399 compliant geometry for toolholder data interoperability
• Corner radius of 0.0035 inches (0.09 mm) for precise thread root profile

Compatibility

Designed for use with 22IR-series laydown threading toolholders accepting a 1/2 inch inscribed circle insert. Confirmed for internal UN thread profiles at 16 TPI in right-hand cutting configurations per the ISCARTHREAD series specification.

Installation Notes

Insert replacement should be performed by a qualified machinist or CNC technician with the machine fully stopped and the spindle locked before handling. Use appropriate insert seating tools and confirm the insert is fully seated and clamped to the toolholder specification before resuming cutting operations. Do not use damaged or chipped inserts, as irregular thread form can result. Follow the toolholder manufacturer guidelines for clamping torque and insert orientation.