Iscar 6400398 Cutoff Insert 3 Mm Carbide Parting

Product Description

The ISCAR 6400398 is a solid carbide cutoff and parting insert from the Cut-Grip series, designed for precision grooving and parting operations on CNC lathes and turning centers. Manufactured to the GIM 3 4RA geometry, it delivers a 3.00 mm cutting width (0.1181 inches) with a 4-degree right-hand lead angle and a 7-degree relief angle. The IC20 grade solid carbide substrate is uncoated, making it well suited for universal workpiece materials across a broad range of turning applications. This insert is installed and changed by CNC machinists, toolroom technicians, and production lathe operators.

This insert is intended for parting and cutoff applications on conventional and CNC turning equipment. It is compatible with Cut-Grip series toolholders that accept the GIM 3 4RA insert style. The right-hand lead angle orientation suits standard right-hand turning setups. The universal primary workpiece material classification means this insert can be applied across steel, cast iron, stainless, non-ferrous, and superalloy workpieces, though IC20 carbide grade is best matched to medium-range cutting conditions. Sold individually with a minimum order quantity of 10 units.

Key Features

• 3.00 mm (0.1181 inch) cutting width for precise parting and grooving
• IC20 solid carbide grade, uncoated, for broad material compatibility
• 4-degree right-hand lead angle for standard right-hand turning setups
• 7-degree relief angle reduces rubbing and improves chip clearance
• 0.25 mm (0.0098 inch) corner radius for controlled edge engagement
• Single-end insert from the Cut-Grip clamping series

Compatibility

Designed as an OEM-style replacement and standard insert for ISCAR Cut-Grip series toolholders accepting the GIM 3 4RA insert style. Compatible with workpiece material codes H, K, M, N, and S per ISO 13399 classification.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or toolroom technician with the machine in a full stop, locked-out condition. Use the appropriate torque driver or clamp screw tool specified for the Cut-Grip holder to seat the insert correctly. Inspect the insert pocket and clamping surfaces for chips or debris before seating a new insert. Do not attempt to resharpen or modify the cutting edge.