Sandvik Coromant 7564390 Milling Insert Solid Carbide R390

Product Description

The SANDVIK COROMANT 7564390 is a solid carbide milling insert designed for use in R390 series face and shoulder milling cutters. It carries a CVD-applied trilayer coating of TiCN, Al2O3, and TiN under manufacturer grade 4340, targeting demanding cutting operations in steel, stainless steel, and cast iron. The insert measures 0.1875 inches thick with an inscribed circle of 0.3780 inches and features a parallelogram shape with a positive 22-degree rake angle. Two cutting edges are provided per insert, and a corner radius of 0.1220 inches (3.10 mm) supports controlled chip formation at moderate to aggressive depths of cut up to 0.6181 inches.

This insert is suited for industrial milling applications in both roughing and semi-finishing passes on P, M, and K material groups - steel, stainless steel, and cast iron. It is a right-hand insert secured by screw-clamping and is intended for use in R390-series toolholders and cutter bodies. Typical installation environments include CNC machining centers performing shoulder milling, face milling, or slot milling operations. The PM chip breaker geometry is optimized for general-purpose cutting across the listed workpiece materials.

Key Features

• CVD trilayer coating: TiCN, Al2O3, TiN for wear resistance across P, M, and K material groups
• Positive 22-degree rake angle reduces cutting forces on the workpiece
• Corner radius of 0.1220 inches (3.10 mm) with corner-rounded cutting edge style
• Maximum depth of cut of 0.6181 inches supports aggressive material removal
• Two cutting edges per insert; single-sided design with screw-clamp holding method
• Conforms to ANSI and ISO standards; ANSI/ISO code R390-17 04 31E-PM 4340

Compatibility

Designed for use in R390-series milling cutter bodies. ANSI and ISO designation R390-17 04 31E-PM 4340 confirms fitment in toolholders specifying insert size code 170431. Compatible with primary workpiece materials coded P (steel), M (stainless steel), and K (cast iron).

Installation Notes

Installation is performed by machining professionals or CNC toolroom technicians. Power down and de-energize the machine tool completely before changing inserts. Secure the insert using the specified screw-clamp method and verify seating against the pocket before resuming operation. Handle solid carbide inserts carefully to avoid chipping the cutting edges during installation or storage.