Iscar 6403948 Grooving Insert MIFR8150020 IC908 1.5mm

Product Description

The ISCAR 6403948 is a solid carbide grooving insert in the Min-Cut series, designed for precision external and internal grooving operations on CNC turning centers and multi-task lathes. It carries the IC908 grade with a PVD-applied TiAlN coating, which improves wear resistance and extends tool life across a wide range of workpiece materials. The insert features a 1.5 mm cutting width and a maximum depth of cut of 5.69 mm, making it well suited for narrow groove profiles requiring tight dimensional control. A 0.20 mm corner radius reduces stress concentration at the groove root. Insert holding is by screw clamp, providing rigid, repeatable seating in compatible toolholders.

This insert is intended for use in production machining environments where consistent groove geometry is critical. It is rated for universal workpiece material compatibility, covering ISO material groups P, M, K, H, and S — meaning it handles steel, stainless steel, cast iron, hardened materials, and superalloys within appropriate cutting parameters. Typical applications include part-off grooves, snap-ring grooves, and undercut profiles on turned components. It is installed by machinists and CNC setup technicians in job shops and high-volume production facilities. The insert style code is MIFR and the ISO catalog designation is MIFR 8-1.50-0.20.

Key Features

• IC908 grade solid carbide with PVD TiAlN coating for elevated wear resistance
• 1.5 mm cutting width with a 0.20 mm corner radius for precise narrow-groove profiles
• Maximum depth of cut of 5.69 mm, within the 5.00 to 10.00 mm depth-of-cut range class
• Universal material compatibility across ISO groups P, M, K, H, and S
• Screw-clamp insert holding method for rigid, repeatable seating
• Single-ended insert; conforms to ISO 13399 tooling data standards

Compatibility

Designed for use in Min-Cut series screw-clamp grooving toolholders that accept the MIFR 8-1.50-0.20 insert style. Verify toolholder pocket geometry and insert style code before ordering. No additional specific compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician with the machine spindle fully stopped and the turret in a safe index position. Use the manufacturer-specified torx or hex key to torque the clamping screw; do not over-tighten, as solid carbide inserts are brittle and can fracture under excessive clamping force. Inspect the insert pocket for chips or debris before seating the insert. Confirm correct insert orientation and grade before resuming cutting operations.