Sandvik Coromant 5745604 Milling Insert 2040 Solid Carbide

Product Description

The SANDVIK COROMANT 5745604 is a solid carbide milling insert in the R390 series, designed for use in shoulder milling and face milling operations. It carries the ANSI/ISO designation R390-17 04 08E-ML 2040 and features a multilayer CVD coating of TiCrN, Al2O3, and TiN for extended tool life and heat resistance. The insert has a parallelogram shape with a positive rake angle and a corner-rounded cutting edge, offering two usable cutting edges per insert. It measures 0.6181 inches in length, 0.3780 inches in inscribed circle diameter, and 0.1875 inches thick, with a corner radius of 0.0315 inches.

This insert is suited for machining steel, stainless steel, superalloys, and titanium, corresponding to material grade designations P45, M40, and S30. It is intended for use in the R390 cutter series and is appropriate for both roughing and semi-finishing passes. The ML chip breaker geometry helps manage chip control across these demanding workpiece materials. The maximum depth of cut is 0.6181 inches (15.70 mm). Typical applications include aerospace component machining, general job shop milling, and production environments where consistent insert performance across difficult alloys is required. The insert is held in place by a screw clamping method.

Key Features

• Solid carbide substrate with CVD-applied TiCrN, Al2O3, and TiN multilayer coating for thermal and wear resistance
• R390 series designation with insert size code 170408 and ANSI/ISO code R390-17 04 08E-ML 2040
• Parallelogram shape, right-hand cut, positive rake, corner-rounded edge with 0.0315-inch corner radius
• Two cutting edges per single-sided insert for cost-effective tool management
• ML chip breaker geometry suited for steel, stainless steel, superalloys, and titanium
• Maximum depth of cut of 0.6181 inches (15.70 mm)

Compatibility

Designed for use with the Sandvik Coromant R390 cutter series. Insert size code 170408 corresponds to ANSI/ISO designation R390-17 04 08E-ML 2040.

Installation Notes

Installation is performed by a machinist or tooling technician using the screw clamping method standard to the R390 toolholder platform. The machine spindle must be fully stopped and the tool secured before seating or replacing inserts. Inspect the insert pocket and clamping screw for wear or debris before installing a new insert. Follow the toolholder manufacturer torque guidance for the clamping screw to avoid seat damage.