Sandvik Coromant 5745689 R390 Milling Insert Carbide

Product Description

The SANDVIK COROMANT 5745689 is a solid carbide milling insert designed for high-performance face and shoulder milling operations. Carrying the manufacturer grade 3040 and cataloged as R390-11 T3 10M-KH 3040, this single-sided, right-hand insert features a parallelogram shape with a 90-degree included angle and a positive 9-degree rake angle. The CVD-applied dual-layer coating — TiCN over Al2O3 — delivers thermal resistance and wear protection suited for demanding cut conditions. With two cutting edges, a corner radius of 1.00 mm, and a maximum depth of cut of 10.00 mm, it is positioned for productive metal removal in steel, cast iron, and hard materials. Licensed HVAC is not the trade here — this insert is spec'd and installed by machinists and CNC tooling technicians.

The 5745689 targets milling applications in steel, cast iron, and hard materials, corresponding to ISO material groups P, K, and H. It is compatible with the R390 and M-32 cutter series. Typical use cases include square-shoulder milling, face milling, and pocketing operations on CNC machining centers and mills where insert size code 11T310 toolholders are in use. The KH chip breaker geometry supports controlled chip formation across these primary workpiece materials.

Key Features

• Solid carbide substrate with CVD TiCN and Al2O3 dual-layer coating for extended tool life in abrasive and thermally demanding cuts
• Positive 9-degree rake angle reduces cutting forces and improves chip flow
• Corner radius of 1.00 mm (0.0394 inches) with rounded cutting edge style for surface finish and edge strength
• Maximum depth of cut of 10.00 mm (0.3937 inches) for aggressive material removal
• Two cutting edges per insert extend usable life before disposal
• Right-hand, single-sided insert with screw holding method for secure, repeatable seating in compatible toolholders

Compatibility

Designed for use with the R390 and M-32 cutter series. ANSI and ISO code: R390-11 T3 10M-KH 3040. Insert size code 11T310 applies. Compatible primary workpiece materials are steel (P20), cast iron (K30), and hard materials (H25).

Installation Notes

Installation is performed by machining technicians or CNC tooling specialists. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torque wrench and manufacturer-specified screw to clamp the insert — do not overtighten. Inspect the insert pocket and seating surface for chips or debris before mounting to ensure accurate seating and prevent premature edge failure.