Walter 5585560 Turning Insert CNMG433-NR4WSM20 Carbide

Product Description

The WALTER 5585560 is a solid carbide turning insert carrying the industry designation CNMG433-NR4WSM20 and ISO code CNMG120412-NR4 WSM20. It features an 80-degree diamond (rhombic) insert shape, a 1/2-inch inscribed circle, and a 3/64-inch corner radius (0.0469 inches). The WSM20 grade is paired with a multilayer PVD coating - TiAlN, Al2O3, and ZrCN - engineered for demanding cutting operations in stainless steel, superalloys, and titanium. With four cutting edges and a neutral hand orientation, this insert suits turning, facing, and boring applications. Installation is performed by licensed machinists and CNC tooling specialists working with CNMG-compatible toolholders.

This insert is designed for primary use in stainless steel and superalloy and titanium workpiece materials (ISO material codes M and S), with secondary suitability for steel (ISO material code P). It fits standard CNMG toolholders using clamp or pin holding methods and is appropriate for both roughing and finishing passes within its rated depth-of-cut range. The NR4 chipbreaker geometry is suited to moderate chip control demands in these difficult-to-machine material groups.

Key Features

• 80-degree diamond insert shape (ANSI code C) with four usable cutting edges for extended insert life
• Multilayer PVD coating - TiAlN, Al2O3, ZrCN - for heat resistance and wear performance in stainless steel, superalloys, and titanium
• WSM20 carbide grade rated for ISO material groups M20, P20, and S20
• NR4 chipbreaker with chamfered and honed cutting edge style for controlled chip formation
• Negative rake and negative side clearance geometry compatible with rigid CNMG toolholder systems
• Multi-use application: turning, facing, and boring in a single insert platform

Compatibility

Designed as an OEM-style replacement or direct-fit insert for toolholders accepting CNMG433 (ISO CNMG120412) inserts using clamp or pin clamping. Conforms to ANSI and ISO insert standards.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or removing inserts. Use the correct clamp or pin hardware specified for the toolholder to ensure proper insert seating and prevent movement under cutting loads. Inspect the insert pocket and clamping surfaces for chips or wear before installation.