Accupro 75260679 Turning Insert WNMG331 Carbide Pvd

Product Description

The ACCUPRO 75260679 is a WNMG-style carbide turning insert designed for use in CNC and manual lathe operations. It carries the ANSI insert code WNMG331 and ISO insert code WNMG060404, making it a standard-geometry replacement for indexable toolholders that accept the WNMG form factor. The insert features a W trigon 80-degree included angle, a PVD coating, and manufacturer grade ACM25P. The corner radius is 0.40 mm (0.0157 inches), and insert thickness is 0.1874 inches. With six cutting edges and a negative side clearance, it delivers extended tool life across a range of workpiece materials. Machinists and CNC operators in production and job-shop environments are the primary users.

This insert is suited for turning steel, stainless steel, and special or super alloys in both roughing and finishing applications, depending on chip breaker selection and feed rate. The IPK+ chip breaker geometry supports controlled chip evacuation across these material groups. The ACM25P grade is characterized by high wear resistance for steel (P) applications, high-to-moderate wear resistance and toughness for stainless steel (M) applications, and moderate wear resistance and toughness for special and super alloys (S) applications. It is appropriate for both light and moderate depth-of-cut scenarios, with a maximum depth of cut of 0.1654 inches (4.20 mm).

Key Features

• ANSI code WNMG331 and ISO code WNMG060404 for broad toolholder compatibility
• PVD-coated ACM25P carbide grade rated for P, M, and S workpiece material groups
• W trigon 80-degree insert shape with 6 indexable cutting edges
• IPK+ chip breaker for controlled chip formation across material types
• Corner radius of 0.40 mm (0.0157 inches) for precise edge geometry
• Compatible with clamp, lever lock, pin, and screw insert-holding methods

Compatibility

Designed as an OEM-style replacement for indexable turning toolholders that accept the WNMG331 or WNMG060404 insert geometry with a negative rake seating and M-tolerance class fit.

Installation Notes

Installation is performed by machinists or CNC operators during scheduled insert indexing or replacement. Power down and lock out the machine spindle before handling inserts. Use proper insert handling tools or gloves — carbide edges are sharp and can cause laceration. Confirm that the toolholder seat and clamping mechanism are free of chips and debris before seating the insert to maintain accurate edge positioning.