Iscar 6003139 Gfn 2J IC908 Carbide Cutoff Insert 1.99mm

Product Description

The ISCAR 6003139 is a carbide cutoff and grooving insert designed for precision parting and grooving operations on CNC lathes and turning centers. Manufactured to the GFN 2J geometry with an IC908 PVD-coated grade, this single-end insert delivers a 1.99 mm cutting width and a neutral lead angle for straight, balanced cuts. The IC908 coating provides wear resistance across a broad range of workpiece materials. The J chipbreaker geometry promotes chip control in grooving and parting applications. This insert is part of the Self-Grip series and is installed by machinists and toolroom technicians working in production or job-shop environments.

This insert is suited for grooving and parting operations in both production and job-shop turning setups. Its universal primary workpiece material rating covers a wide range of metals, including steel, stainless steel, cast iron, and high-temperature alloys, corresponding to ISO material groups P, M, K, H, and S. The Self-Grip series clamping method secures the insert directly in compatible Self-Grip toolholders without additional hardware, allowing fast indexing during high-volume runs.

Key Features

• IC908 PVD-coated carbide grade for extended tool life across universal workpiece materials
• 1.99 mm cutting width with a neutral lead angle for straight parting and grooving cuts
• J chipbreaker geometry for effective chip control in grooving applications
• Self-Grip clamping method for secure, tool-free insert seating in compatible holders
• 7-degree relief angle reduces flank wear and supports clean exit cuts
• 0.16 mm corner radius for controlled entry and reduced notching at groove shoulders
• Compliant with ISO 13399 tooling data standards for integration with CAM and tool management systems

Compatibility

Designed for use in ISCAR Self-Grip series toolholders that accept GFN 2-size inserts. Verify holder pocket geometry and insert seat dimensions against the ISCAR Self-Grip product line specifications before installation.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or toolroom technician with the machine in a full stop, spindle off, and coolant disabled. Use the appropriate ISCAR Self-Grip clamping tool to seat and release the insert; do not use improvised tools that may damage the pocket or insert body. Inspect the toolholder pocket for wear, debris, or damage before seating a new insert. Follow the machine tool manufacturer and cutting tool manufacturer guidelines for feed rates and depth of cut when setting up grooving or parting operations.