Walter 5016873 Turning Insert CNMG432-NR4WAM30 Carbide

Product Description

The WALTER 5016873 is a solid carbide turning insert with ANSI designation CNMG432-NR4WAM30 and ISO designation CNMG120408-NR4 WAM30. It features an 80-degree diamond (rhombic) shape, a negative rake geometry, and a chamfered and honed cutting edge style. Manufactured in the WAM30 grade and belonging to the Tiger-tec series, this insert is engineered for demanding metal-cutting operations. It delivers four usable cutting edges per insert, helping extend tool life between changeovers. The NR4 chip breaker geometry supports controlled chip evacuation across a range of feed rates and depths of cut.

This insert is suited for turning, facing, and boring operations on CNC lathes and turning centers in both production shop and job shop environments. It is installed by machinists and tooling technicians working with indexable toolholders designed for CNMG-style inserts. The maximum depth of cut reaches 5.00 mm (0.197 inches), making it appropriate for medium-duty material removal passes. Its neutral hand orientation allows use in a wide variety of toolholder setups without handedness restrictions.

Key Features

• ANSI code CNMG432 / ISO code CNMG120408 - fits standard CNMG toolholders
• WAM30 carbide grade in the Tiger-tec series for wear resistance in steel and cast iron applications
• 80-degree diamond insert shape with negative side clearance and negative rake for robust edge strength
• Four cutting edges per insert for extended service life and lower cost per edge
• NR4 chip breaker supports turning, facing, and boring in a multi-use configuration
• Clamp and pin holding method compatible with standard CNMG-style toolholders

Compatibility

Designed as an OEM-style replacement or direct fitment insert for indexable toolholders accepting CNMG432 (ANSI) or CNMG120408 (ISO) turning inserts with clamp and pin holding.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or clamp-screw driver specified by the toolholder manufacturer to secure the insert - do not overtighten by hand estimation alone. Inspect the insert seat and chip pocket for debris or damage before seating a new insert edge.