Description

The SECO 02959848 is a CNMG432-M6 indexable turning insert designed for general-purpose metal cutting in CNC lathes and turning centers. It carries the TP2501 grade with a Duratomic CVD multilayer coating of TiCN, Al2O3, and Cr applied over a carbide substrate. The 80-degree diamond shape and negative rake geometry provide strength across the cutting edge, while the M6 chip breaker geometry manages chip flow across a broad range of depths and feed rates. With four usable cutting edges per insert, this is a cost-efficient choice for production turning environments.

This insert is suited for roughing, semi-finishing, and finishing operations on steel, stainless steel, and cast iron workpieces, corresponding to ISO material groups P, M, and K. Recommended material grades are P10, P20, P30, and P35. The M6 chip breaker makes it effective in boring, facing, and turning applications. It is typically installed in toolholders that accept CNMG-style inserts using clamp, pin, or lever lock holding methods. The neutral hand orientation allows use in both right-hand and left-hand tooling setups.

Key Features

TP2501 Duratomic CVD coating with TiCN, Al2O3, and Cr layers for wear and heat resistance
80-degree diamond insert shape with negative rake for edge strength and stability
M6 chip breaker geometry supports boring, facing, and turning across a range of cut depths
Four cutting edges per insert for extended tool life per unit cost
Compatible with clamp, pin, and lever lock insert holding methods
Honed cutting edge style reduces edge micro-chipping on entry

Compatibility

Designed for use in CNMG-style indexable toolholders accepting a 1/2-inch inscribed circle insert with a 3/16-inch thickness and a 0.2028-inch hole diameter. Compatible with ANSI and ISO standard tooling systems per industry standard number CNMG432-M6 and ISO code CNMG120408-M6.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist or tooling technician. Ensure the toolholder pocket and seating surface are clean and free of chips or debris before installing the insert. Torque clamping screws to the toolholder manufacturer’s specification only. Inspect the cutting edge condition before each use and index or replace the insert when wear limits are reached to prevent workpiece damage or toolholder wear.