Sandvik Coromant 5888551 Milling Insert Grade 1040 Tialn

Product Description

The SANDVIK COROMANT 5888551 is a solid carbide milling insert in the R390 series, designed for shoulder milling and face milling operations on steel and stainless steel. Manufactured to grade 1040 with a PVD-applied TiAlN coating, this insert delivers heat resistance and edge stability at elevated cutting speeds. It features a parallelogram shape with a 90-degree included angle, a positive 22-degree rake angle, and a corner-rounded cutting edge style. The MM chip breaker geometry controls chip flow efficiently during interrupted and continuous cuts. With two cutting edges per insert and a screw-type holding method, it suits high-productivity milling setups where consistent tool life and repeatable positioning matter.

This insert is intended for use in R390 series milling cutters in both CNC machining centers and manual milling applications. Primary material applications include steel (ISO P) and stainless steel (ISO M), making it appropriate for general-purpose and moderate-to-aggressive metal removal in job shops, production machining, and maintenance environments. The right-hand configuration and single-sided design are suited for standard right-hand cutter bodies. It is sold individually with a minimum order quantity of 10 units.

Key Features

• Grade 1040 solid carbide substrate with PVD TiAlN coating for thermal stability and wear resistance
• Positive rake angle of 22 degrees reduces cutting forces and heat generation
• Corner radius of 0.122 inches (3.10 mm) with corner-rounded cutting edge style for controlled entry
• MM chip breaker geometry optimized for steel and stainless steel chip control
• Maximum depth of cut reaches 0.6181 inches (15.70 mm)
• Screw-type insert holding method for secure, repeatable seating in the cutter body
• Meets ANSI and ISO standards; ANSI/ISO code R390-17 04 31E-MM 1040

Compatibility

Designed for use with R390 series cutter bodies. The insert size code is 170431, and the catalog designation is R390-17 04 31E-MM 1040 per both ANSI and ISO standards.

Installation Notes

Installation is performed by machinists or tooling technicians. Ensure the spindle is fully stopped and the machine is locked out before changing inserts. Use the appropriate torx or hex key to secure the clamping screw to the cutter body per the toolholder manufacturer specifications. Inspect the insert pocket and seating surfaces for debris or wear before seating a new insert to maintain proper positioning and runout.