Sandvik Coromant 5745631 R390 Milling Insert 2030 Grade

Product Description

The SANDVIK COROMANT 5745631 is a solid carbide milling insert designed for shoulder milling and face milling operations in demanding metalworking applications. Manufactured to R390 series geometry, it carries insert size code R390-11 T3 24E-MM 2030 and conforms to both ANSI and ISO standards. The insert features a PVD-applied TiAlN and TiN dual-layer coating over a solid carbide substrate, providing heat resistance and edge stability during high-speed cutting. With a positive rake angle of 25 degrees and a corner-rounded cutting edge style, it is engineered for efficient chip formation and reduced cutting forces. A licensed machinist or CNC tooling technician installs and indexes this insert in compatible milling tool bodies.

This insert is suited for milling steel, stainless steel, superalloys, and titanium, covering material grade classifications P30, M25, and S20. It is a right-hand, single-sided insert with two cutting edges. Typical applications include shoulder milling at up to 10.00 mm depth of cut in both roughing and semi-finishing passes on CNC vertical and horizontal machining centers. The MM chip breaker geometry is optimized for steel and stainless steel chip control in medium-duty cutting conditions. This insert is sold individually and carries a minimum order quantity of 10 units per purchase.

Key Features

• Solid carbide substrate with PVD-applied TiAlN and TiN dual-layer coating for thermal and wear resistance
• Positive 25-degree rake angle with corner-rounded cutting edge reduces cutting forces on difficult materials
• Two cutting edges per insert with screw-type insert holding for secure clamping and repeatable indexing
• Maximum depth of cut of 10.00 mm supports shoulder milling in steel, stainless steel, superalloys, and titanium
• MM chip breaker geometry promotes controlled chip evacuation in medium-duty milling passes
• Conforms to ANSI and ISO standards; catalog designation R390-11 T3 24E-MM 2030

Compatibility

Compatible with R390 and M-32 cutter series tool bodies as stated by the manufacturer. Insert size code R390-11 T3 24E-MM 2030 should be verified against the tool body specification before ordering.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct Torx or hex key for the clamping screw as specified by the tool body manufacturer — do not over-tighten, as this can crack the carbide insert. Inspect the insert pocket seating surface and screw threads for wear or debris before seating the new insert.