Accupro 75469627 TNMG331 Carbide Turning Insert

Product Description

The ACCUPRO 75469627 is a TNMG-style indexable carbide turning insert designed for precision external and internal turning operations on CNC lathes and manual turning centers. Manufactured to ANSI code TNMG331 and ISO code TNMG160404, this triangular insert features a CVD coating under grade ACM20P, delivering high wear resistance with moderate toughness. The neutral-hand geometry and negative side clearance (clearance code N, tolerance code M) suit a wide range of finish and semi-finish turning passes. With 6 cutting edges per insert and a 0.40 mm corner radius, this insert offers consistent performance and cost-effective edge utilization per tool change.

This insert is suited for turning steel and stainless steel workpieces in production and job-shop environments. The IPK+ chip breaker geometry supports reliable chip control across varying feed rates and depths of cut, making it applicable to both roughing passes and finishing cuts within its rated depth-of-cut range. Machinists and CNC operators in aerospace, general machining, and fabrication shops will find this insert appropriate for P and M class workpiece materials as classified by ISO material codes.

Key Features

• TNMG triangular insert shape with 60-degree included angle and 6 usable cutting edges
• CVD-coated carbide grade ACM20P for high wear resistance on steel and stainless steel
• 0.40 mm (0.0157 inch) corner radius for semi-finish to finish turning applications
• IPK+ chip breaker geometry for consistent chip control across a range of feeds and depths
• Maximum depth of cut: 4.20 mm (0.1654 inches)
• Compatible with clamp, lever lock, pin, and screw insert-holding methods

Compatibility

Designed for use in toolholders accepting TNMG331 (ANSI) or TNMG160404 (ISO) inserts with clamp, lever lock, pin, or screw holding systems. Rated for ISO primary workpiece material codes P (steel) and M (stainless steel).

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque driver or clamping tool specified by the toolholder manufacturer to seat the insert securely. Inspect the insert pocket and clamping components for wear or debris before installing a fresh cutting edge.