Accupro 75536466 TNMG331 Carbide Turning Insert

Product Description

The ACCUPRO 75536466 is a TNMG331 style carbide turning insert designed for precision metal cutting on CNC and manual lathes. It features a triangular insert shape with a 60-degree included angle, a PVD coating in grade ACM25P, and a neutral hand orientation. The insert provides six usable cutting edges, maximizing tool life per insert. A corner radius of 0.0157 inches (0.40 mm) and a maximum depth of cut of 0.1654 inches (4.20 mm) make it well-suited for finishing and semi-finishing operations. Licensed machinists and CNC operators install and index this insert as part of standard toolholder maintenance.

This insert is rated for use on steel (P-class), stainless steel (M-class), and special and super alloys (S-class). The ACM25P grade balances wear resistance and toughness across these material groups, making it a versatile choice for job shops and production environments running mixed-material workpieces. It seats in TNMG-compatible clamp, lever lock, pin, or screw-style toolholders and is sold individually with a minimum order of 10 units.

Key Features

• TNMG331 ANSI code / TNMG160404 ISO code - direct cross-reference for international tooling systems
• PVD-coated carbide in grade ACM25P for extended edge life on steel and stainless
• Six cutting edges per insert reduce per-edge tooling cost
• Neutral hand orientation fits left- or right-hand toolholder setups
• IPK+ chip breaker geometry promotes reliable chip control in turning operations
• Compatible with clamp, lever lock, pin, and screw insert holding methods

Compatibility

Designed for use in TNMG-style turning toolholders that accept a triangular insert with a 0.1874-inch thickness, a 0.3752-inch inscribed circle, and a 0.1512-inch hole diameter. Negative side clearance (N) and tolerance code M apply - verify toolholder specifications before ordering.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before removing or seating any insert. Use the appropriate torque wrench and manufacturer-specified clamping hardware for the toolholder type in use - do not over-tighten screw-style clamps. Inspect the toolholder pocket and seating surface for chips or wear before installing a fresh edge.