Sandvik Coromant 7564397 Milling Insert R390 Solid Carbide

Product Description

The SANDVIK COROMANT 7564397 is a solid carbide milling insert in the R390 series, designed for face and shoulder milling operations in demanding production environments. It carries a CVD-applied tri-layer coating of TiCN, Al2O3, and TiN - grade 4340 - which provides wear resistance and thermal stability across a range of workpiece materials. The insert measures 6.33 mm thick and 11.00 mm wide, with a 0.80 mm corner radius and a positive rake angle of 3 degrees. It is held in place by a screw and features a single-sided, right-hand configuration with two cutting edges per insert. Machinists and CNC setup technicians install this insert in R390-compatible toolholders on milling machines.

This insert is suited for machining steel, stainless steel, and cast iron, corresponding to ISO material groups P, M, and K. It is classified under material grades P40, M40, and K40, making it appropriate for medium to rough cutting conditions. The insert fits R390 and M-40 cutter series toolholders and is used in both roughing and semi-finishing milling passes. It is identified by ANSI and ISO code R390-18 06 08H-PL 4340 with a PL chip breaker geometry and a 90-degree included angle. Typical applications include shoulder milling, pocket milling, and ramping operations in job shop and production machining settings.

Key Features

• CVD-coated with TiCN, Al2O3, and TiN layers for wear resistance and heat management
• Solid carbide substrate, grade 4340, rated for P40, M40, and K40 material groups
• Positive rake angle (3 degrees) reduces cutting forces on the workpiece
• Corner-rounded cutting edge style with 0.80 mm corner radius for controlled entry
• Two usable cutting edges per insert; single-sided, right-hand orientation
• PL chip breaker geometry supports effective chip evacuation in steel and cast iron
• Screw-clamped insert holding method for secure, repeatable positioning

Compatibility

Compatible with R390 and M-40 series milling toolholders. ANSI and ISO code R390-18 06 08H-PL 4340 confirms fitment with toolholders designed for that insert size designation. Insert size code 180608 applies.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the correct torx or hex key specified by the toolholder manufacturer to tighten the clamping screw - do not over-torque, as this can crack the carbide insert. Inspect the insert seat and clamping screw for wear or debris before seating a new insert.