Seco 02730813 Turning Insert Cnmg 433-MF2 TH1000 Carbide

Product Description

The SECO 02730813 is a CNMG 433-MF2 indexable turning insert manufactured from solid carbide with a multilayer TiAlSiN PVD coating. Designed for high-wear-resistance finishing operations, it carries the TH1000 manufacturer grade and is optimized for cutting superalloys, titanium, and hardened materials. The insert features an 80-degree diamond (rhombic) shape, a 0.5 inch inscribed circle, and a 3/64 inch (0.0472 inch) corner radius. With 4 cutting edges, a chamfered and honed cutting edge style, and a neutral hand orientation, this insert suits demanding finishing passes where tool life and surface finish consistency are critical. Licensed machinists and CNC operators in aerospace, energy, and precision machining environments are the primary installers.

This insert is suited for finishing applications on superalloys and titanium (ISO material code S) and hardened materials (ISO material code H), with secondary applicability to cast iron (K), general steels (M), and low-alloy steels (P). Multi-use application coverage includes turning, facing, and boring operations. The MF2 chip breaker geometry is engineered for finishing cuts, supporting controlled chip formation at the shallow depths of cut typical of finishing passes. Maximum depth of cut reaches 0.4606 inches, providing flexibility across tight-tolerance finishing scenarios. The CNMG 433 ANSI size code corresponds to ISO size code 120412, and the full ISO designation is CNMG120412-MF2.

Key Features

• TiAlSiN multilayer PVD coating for high wear resistance in superalloy and hardened-material cutting
• MF2 chip breaker geometry optimized for finishing operations and controlled chip evacuation
• 4 indexable cutting edges per insert, maximizing cost-per-edge value
• Chamfered and honed cutting edge style for edge strength and surface finish quality
• Compatible with clamp, pin, and lever lock insert holding methods
• Negative rake, negative side clearance geometry for stability in interrupted and continuous cuts

Compatibility

Designed for use in CNMG-style turning toolholders accepting a 433 ANSI size code insert (ISO 120412). Compatible holding methods include clamp, pin, and lever lock systems. Meets ANSI and ISO standards for CNMG insert geometry.

Installation Notes

Installation is performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench and insert screw for the specific toolholder clamping system to avoid cracking the carbide substrate. Do not mix insert grades or chip breaker styles within a single toolholder setup, as geometry mismatches can cause unpredictable tool behavior and part non-conformance.