Seco 02960681 Turning Insert CNMG322-M3 TP2501 Carbide

Product Description

The SECO 02960681 is a CNMG322-M3 geometry solid carbide turning insert with a TP2501 grade designation and a CVD-applied Duratomic multilayer coating consisting of TiCN, Al2O3, and Cr. The insert features an 80-degree diamond shape with a negative rake, a 3/8-inch inscribed circle, and a 1/32-inch corner radius. It provides 4 usable cutting edges per insert and is manufactured to ANSI and ISO standards. The chamfered and honed cutting edge style combined with the M3 chip breaker geometry makes it well-suited for steel and stainless steel turning applications across a range of material grades including P10, P20, P30, and P35.

This insert is intended for use by machinists and tooling professionals on CNC lathes and manual turning centers in both production and job shop environments. It supports boring, facing, and turning operations and is designed primarily for steel workpieces, with secondary suitability for stainless steel and cast iron. The M3 chip breaker accommodates medium-depth roughing and finishing passes. The insert can be held using clamp, pin, or lever lock holding methods depending on the toolholder configuration in use.

Key Features

• CVD Duratomic multilayer coating: TiCN, Al2O3, and Cr for extended tool life on steel
• 4 cutting edges per insert — neutral hand orientation for flexible toolholder pairing
• 80-degree diamond insert shape (Shape Code C) with negative rake for strength
• M3 chip breaker geometry supports boring, facing, and turning in medium stock removal
• Chamfered and honed cutting edge for edge stability and reduced built-up edge risk
• Compliant with ANSI and ISO standards; ISO code CNMG090308-M3

Compatibility

Designed for use in CNMG-style toolholders accepting a 3/8-inch inscribed circle insert with clamp, pin, or lever lock holding methods. Compatible with toolholders designed for CNMG322 inserts per ANSI and ISO standards. Primary workpiece material is steel (ISO P); secondary materials include stainless steel (ISO M) and cast iron (ISO K).

Installation Notes

Installation is performed by a machinist or tooling technician. Always power down and lock out the machine before indexing or replacing inserts. Verify the toolholder clamping mechanism — clamp, pin, or lever lock — is rated for the CNMG322 insert size before seating the insert. Inspect the insert pocket for chips or debris and clean it before installing a new edge to ensure proper seating and repeatable tool offset.