Iscar 5902168 Threading Insert 4.00mm Iso External

Product Description

The ISCAR 5902168 is a solid carbide laydown threading insert designed for external ISO thread-form cutting operations on CNC lathes and turning centers. It carries the IC908 grade designation, a PVD-applied TiAlN coating engineered for wear resistance across a broad range of workpiece materials. The insert is configured in the 22ER style for right-hand external threading at a 4.00 mm pitch, with a 1/2-inch (12.70 mm) inscribed circle and a thickness of 0.188 inches. It is seated in compatible ISCAR ISCARTHREAD toolholders and installed by machinists and CNC setup technicians in production and job-shop turning environments.

This insert is suited for external ISO-standard threading on a universal range of workpiece materials, including steels, stainless steels, cast irons, non-ferrous metals, and high-temperature alloys, as indicated by the multi-code workpiece classification H, K, M, N, P, and S. Typical applications include threading shafts, fasteners, fittings, and other turned components where consistent ISO thread form and surface finish are required across medium to high production volumes.

Key Features

• IC908 grade with PVD TiAlN coating for extended tool life across universal workpiece material classes
• 22ER insert style for right-hand external ISO threading at 4.00 mm pitch
• Solid carbide substrate for rigidity and thermal stability in interrupted and continuous cuts
• 0.52 mm (0.0205 inch) corner radius for consistent thread root geometry
• ISO 13399 compliant tooling data for direct integration with CAM and tool management systems

Compatibility

Designed for use in ISCAR ISCARTHREAD series toolholders accepting 22ER-style laydown threading inserts with a 1/2-inch inscribed circle seating.

Installation Notes

Threading inserts of this type are installed and changed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the turret is in a safe index position before performing an insert change. Use the appropriate torx or hex key to the toolholder manufacturer's specified seating procedure and verify the insert is fully seated and clamped before resuming cuts. Inspect the insert pocket and clamping screw for wear or debris prior to each insert seating.