Sandvik Coromant 5745986 Milling Insert Grade 2030 R390

Product Description

The SANDVIK COROMANT 5745986 is a solid carbide milling insert in the R390 series, designed for use in face and shoulder milling operations where precision and wear resistance are critical. Manufactured to grade 2030 with a PVD-applied TiAlN and TiN dual coating, this insert delivers consistent cutting performance across a range of demanding workpiece materials. The parallelogram insert shape with a positive 22-degree rake angle reduces cutting forces and supports smooth chip evacuation. With a corner radius of 0.0157 inches (0.40 mm) and an inscribed circle of 0.3780 inches (9.60 mm), this insert is sized for the R390-17 04 04E-MM tool body format. Installation is performed by licensed machinists and CNC tooling specialists.

This insert is suited for machining steel, stainless steel, superalloys, and titanium in both roughing and semi-finishing applications. The MM chip breaker geometry is optimized for these material groups, supporting stable cutting at moderate to aggressive depths of cut up to 0.6181 inches (15.70 mm). Typical applications include shoulder milling, face milling, and slot milling in aerospace, general manufacturing, and precision machining environments. The single-sided, right-hand configuration and screw-holding method make indexing straightforward during tool changes.

Key Features

• Grade 2030 solid carbide with PVD TiAlN and TiN dual coating for extended tool life in steel and stainless steel
• Positive 22-degree rake angle reduces cutting forces and supports smooth chip flow
• MM chip breaker geometry optimized for steel, stainless steel, superalloys, and titanium (material grades P30, M25, S20)
• Corner radius of 0.0157 inches (0.40 mm) for precise corner definition in shoulder milling
• Maximum depth of cut of 0.6181 inches (15.70 mm)
• Screw-hold mounting with right-hand orientation for secure, repeatable insert indexing

Compatibility

Designed for use with R390 series cutter bodies accepting the R390-17 04 04E-MM insert seat format. ANSI and ISO code: R390-17 04 04E-MM 2030. Insert size code: 170404.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or CNC tooling technician. Ensure the spindle is fully stopped and the machine is locked out before servicing the cutter body. Use the correct Torx or hex key to the cutter body manufacturer's specified torque range for screw-held inserts — do not overtighten, as this can crack the carbide substrate. Inspect the insert pocket and clamping screw for wear or debris before seating the new insert.