Iscar 6003687 DGR4003J4D Carbide Cutoff Insert 4mm

Product Description

The ISCAR 6003687 is a solid carbide parting and grooving insert designated DGR4003J4D in the Do-Grip series. Manufactured to IC808 grade from submicron carbide substrate, the insert features a TiAlN coating applied via PVD process for extended wear resistance in demanding cut-off applications. Key dimensional specs include a 4.00 mm cutting width (0.1575 inches), a 0.30 mm corner radius (0.0120 inches), and an overall length of 19.00 mm (0.7480 inches). The J chipbreaker geometry and 4-degree right-hand lead angle are engineered for efficient chip control during parting operations. Licensed machinists and CNC tool room technicians are the primary installers and users of this insert.

The DGR4003J4D insert is suited for parting and cut-off operations across a broad range of workpiece materials. Its universal primary workpiece material rating covers ISO material groups H, K, M, P, and S, making it applicable to steel, stainless, cast iron, non-ferrous alloys, and heat-resistant superalloys. It is a double-ended insert, offering two cutting edges per unit to extend usable tool life. Typical use is in production turning centers and CNC lathes where repeatable groove width and clean parting faces are required.

Key Features

• IC808 submicron carbide grade with PVD TiAlN coating for elevated heat and wear resistance
• 4.00 mm cutting width with J chipbreaker geometry for controlled chip formation
• Double-ended design provides two cutting edges per insert
• 4-degree right-hand lead angle with 7-degree relief angle
• 0.30 mm corner radius for defined edge geometry at the groove bottom
• Universal material compatibility across ISO groups H, K, M, P, and S

Compatibility

Designed for use in Do-Grip series clamp-style insert holders that accept DGR size 4003 inserts with a seat size of 3. Refer to ISCAR Do-Grip toolholder documentation to confirm holder compatibility before use.

Installation Notes

Installation and indexing of carbide parting inserts should be performed by a qualified machinist or tool room technician. Power down and lock out the machine spindle before seating or removing inserts. Use the appropriate ISCAR clamping tool to secure the insert in the holder to the required clamping torque specified in the toolholder documentation — do not use substitute fasteners. Inspect the insert seat for chips or debris before seating a new edge to prevent premature insert failure.