Iscar 6403207 Grooving Insert GEPI300020 IC908 3mm

Product Description

The ISCAR 6403207 is a solid carbide grooving insert carrying grade designation GEPI300020 and manufactured to IC908 grade with a PVD-applied TiAlN coating. It is a double-ended, neutral-hand insert designed for external and face grooving operations on CNC turning centers and lathes. The insert delivers a 3.00 mm cutting width and a maximum depth of cut of 8.99 mm, making it suited to medium-depth grooving passes in a single setup. The self-grip holding method provides secure seating in compatible Cut-Grip toolholders without additional clamping hardware. Machinists and CNC turning specialists install and index this insert as a routine consumable replacement during production runs.

This insert is intended for universal workpiece material application, with primary material codes covering hardened materials, cast iron, stainless steel, steel, and heat-resistant super alloys. Its positive rake geometry at 8 degrees reduces cutting forces and aids chip evacuation in these varied materials. The Cut-Grip series platform is commonly used in both high-volume production turning and job-shop environments where consistent groove geometry and insert indexability are priorities. The submicron carbide substrate paired with the TiAlN PVD finish supports elevated cutting speeds and extended tool life across this broad material range.

Key Features

• IC908 grade submicron solid carbide substrate with PVD TiAlN coating for wear resistance across universal workpiece materials
• 3.00 mm cutting width with a maximum depth of cut of 8.99 mm for medium-depth grooving
• Double-ended insert geometry — both ends are usable, reducing cost per cutting edge
• Positive rake angle of 8 degrees reduces cutting forces and improves chip flow
• Self-grip insert holding method seats securely in Cut-Grip compatible toolholders without additional fasteners
• Conforms to ISO 13399 tooling data standards, with ISO code GEPI 3.00-0.20

Compatibility

Designed for use with ISCAR Cut-Grip series toolholders that accept the GEPI insert style and 300020 insert size. Compatible across workpiece material groups H, K, M, P, and S as defined by the primary workpiece material codes provided by the manufacturer. Confirm toolholder pocket dimensions match the GEPI 3.00-0.20 insert profile before installation.

Installation Notes

This insert is installed and indexed by a qualified machinist or CNC toolroom technician. Power down and lock out the machine spindle before changing or indexing any insert. Use the correct insert key or torx driver specified by the toolholder manufacturer — do not use substitute tools that may damage the self-grip pocket or insert seat. Inspect the toolholder pocket for chips, debris, or wear before seating the new insert, as a contaminated pocket will affect groove geometry and insert life.