Sandvik Coromant 5746152 Milling Insert 4220 Solid Carbide

Product Description

The SANDVIK COROMANT 5746152 is a solid carbide milling insert engineered for high-performance metal removal in demanding machining environments. Manufactured to grade 4220 and coated via CVD process with a TiCN, Al2O3, and TiN multilayer stack, this insert delivers wear resistance and thermal stability across a range of workpiece materials. It belongs to the R390 series and carries insert style R390 with a parallelogram shape and a positive rake angle of 17 degrees. The inscribed circle measures 0.3780 inches (9.60 mm) and thickness is 0.1875 inches (4.76 mm). It is installed by machinists and CNC tooling specialists on milling machines using compatible R390 cutter bodies.

This insert is suited for milling steel, cast iron, and hard materials in both roughing and semi-finishing passes. The PM chip breaker geometry supports controlled chip formation across those workpiece categories. Material grade designations P20 and H25 align with ISO P and H material group applications. Maximum depth of cut reaches 16.00 mm (0.6299 inches). The right-hand cutting orientation and screw-type holding method make it compatible with standard R390-series toolholders. ANSI and ISO standards are both observed, with catalog designation R390-17 04 08M-PM 4220.

Key Features

• CVD multilayer coating: TiCN, Al2O3, TiN for thermal and abrasion resistance
• Grade 4220 solid carbide construction rated for steel, cast iron, and hard material applications
• Positive rake angle (17 degrees) reduces cutting forces and supports clean entry
• Corner radius of 0.0315 inches (0.80 mm) with rounded cutting edge style
• Two cutting edges per insert; single-sided design with screw-type holding
• Maximum depth of cut: 16.00 mm (0.6299 inches)

Compatibility

Designed for use with R390 series cutter bodies. Catalog designation R390-17 04 08M-PM 4220 conforms to both ANSI and ISO standards. Insert size code 170408 applies.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the spindle is fully stopped and the machine is locked out before seating or removing inserts. Use the appropriate torx or hex key as specified by the toolholder manufacturer when tightening the clamping screw to avoid insert cracking or improper seating. Inspect the insert pocket and seating surface for chips or debris before installation.