Accupro 75332916 CNMG432 Carbide Turning Insert

Product Description

The ACCUPRO 75332916 is a CNMG432 style carbide turning insert designed for precision external turning operations on CNC lathes and turning centers. Built to ANSI code CNMG432 and ISO code CNMG120408, this insert features a CVD coating and a diamond (rhombic) 80-degree insert shape that delivers high wear resistance across steel and cast iron workpiece materials. The 0.80 mm corner radius and negative side clearance geometry support stable, controlled cuts. With four usable cutting edges per insert, it reduces tooling cost per edge in high-volume production environments. Grade ACK20P with a WM+ chip breaker rounds out the specification for consistent chip control in general turning applications.

This insert is suited for production turning in job shops, aerospace component machining, and general metalworking facilities where both steel (P) and cast iron (K) materials are machined. The neutral hand orientation allows use in standard right- and left-hand toolholders. Maximum depth of cut is 4.00 mm (0.1575 inches), making it appropriate for medium finishing and light roughing passes. It is typically installed by machinists and CNC operators in clamp, lever lock, pin, or screw-style insert holding systems.

Key Features

• ANSI insert code CNMG432 / ISO code CNMG120408 for broad toolholder compatibility
• CVD-coated ACK20P carbide grade for high wear resistance in steel and cast iron
• 80-degree diamond (rhombic) insert shape with negative side clearance for rigid, stable cutting
• 0.80 mm (0.0315 inch) corner radius for balanced edge strength and surface finish
• Four cutting edges per insert for extended tooling value
• WM+ chip breaker geometry for controlled chip evacuation in general turning
• Compatible with clamp, lever lock, pin, and screw insert holding methods

Compatibility

Designed as an OEM-style replacement turning insert for CNMG432 toolholders accepting negative-rake carbide inserts with a 0.5000-inch inscribed circle and M tolerance class.

Installation Notes

This insert is installed and indexed by qualified machinists or CNC operators following machine tool manufacturer guidelines. Power down and lock out the machine before indexing or replacing inserts. Use the appropriate torque driver or clamping screw specified by the toolholder manufacturer — do not overtighten, as this can fracture the insert. Inspect the toolholder pocket for wear or debris before seating a new insert to ensure proper support and runout.