Iscar 5993268 Threading Insert 18 Tpi 3/8 in IC908 Carbide

Product Description

The ISCAR 5993268 is a laydown-style threading insert designed for external UN thread cutting on CNC lathes and turning centers. Manufactured from solid carbide with an IC908 grade designation and a PVD-applied TiAlN coating, this insert delivers consistent thread form and tool life across a wide range of workpiece materials. It cuts right-hand external UN threads at 18 threads per inch (TPI) with a 3/8-inch (0.375 inch decimal) inscribed circle and a 0.143-inch thickness. The 16ER insert style seats in standard 16ER-compatible toolholders. Licensed machinists and CNC operators install this insert as a consumable cutting edge during threading operations.

This insert is suited for external threading operations on turned components in general machining, aerospace, and production environments. The IC908 carbide grade with PVD coating is optimized for use on steel, stainless steel, cast iron, aluminum, non-ferrous alloys, high-temperature alloys, and hardened materials, corresponding to ISO material groups P, M, K, N, H, and S. It is sold individually with a minimum order quantity of 5 units, making it appropriate for shop stocking or toolcrib replenishment.

Key Features

• IC908 solid carbide grade with PVD TiAlN coating for extended tool life across multiple material groups
• Cuts UN external right-hand threads at 18 TPI
• 16ER insert style fits standard 16ER threading toolholders
• 3/8-inch inscribed circle (0.375 inch) with 0.143-inch insert thickness
• ISO 13399 compliant insert data for CAM and tool management integration
• Compatible with ISO material grades C1, C2, C6, and C7 classifications

Compatibility

Designed for use in standard 16ER-style laydown threading toolholders accepting a 3/8-inch inscribed circle insert. Confirmed compatible with workpiece material codes H, K, M, N, P, and S per ISO material group designations.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing the insert. Ensure the insert pocket and clamping screw are clean and free of chips before installation. Verify the insert is fully seated and the clamping torque meets the toolholder manufacturer specification before resuming cutting operations.