Description

The SECO 02730827 is a WNMG 433-MF2 trigon turning insert manufactured from solid carbide and coated with a multilayer TiAlSiN finish applied via PVD process. The insert carries a TH1000 manufacturer grade and is designed for high-performance external and internal turning operations. With a 0.5000-inch inscribed circle, a 0.0472-inch corner radius, and an 80-degree included angle, it delivers precise, controlled cuts in demanding material groups. The MF2 chip breaker geometry features a chamfered and honed cutting edge for stability in interrupted and continuous cuts. This insert is used by machinists and CNC turning specialists working in production and job-shop environments.

The 02730827 is engineered primarily for machining superalloys and titanium (ISO material code S) as well as hard materials (ISO material code H), corresponding to material grades S05 and H05. Its neutral hand orientation and negative rake angle make it suitable for boring, facing, and turning operations on standard turret toolholders that accept WNMG-style inserts with clamp, pin, or lever-lock holding methods. The MF2 chip breaker geometry is optimized for finishing and medium cuts in tough, work-hardening alloys where edge stability and heat resistance are critical.

Key Features

TH1000 grade PVD TiAlSiN multilayer coating for heat and wear resistance in superalloys and titanium
MF2 chip breaker with chamfered and honed edge for controlled chip formation and edge security
6 cutting edges per insert maximizes cost-per-edge value in production turning
Neutral hand compatible with both right-hand and left-hand toolholder configurations
Negative rake, 0-degree relief angle (clearance code N) for robust edge strength under high cutting forces
Multi-use geometry supports boring, facing, and turning from a single insert style

Compatibility

Designed as an OEM-style replacement and production insert for WNMG 433 (ISO: WNMG080412) compatible toolholders accepting clamp, pin, or lever-lock holding methods. Meets ANSI and ISO standards for WNMG insert geometry. Industry standard number WNMG433-MF2; ISO code WNMG080412-MF2.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Power down and lock out the machine before indexing or replacing inserts. Use the correct torque on the clamping screw or lever-lock mechanism per the toolholder manufacturer specification do not overtighten, as carbide inserts are brittle. Inspect the insert seat and shim for chips or debris before seating a new insert to ensure proper contact and runout control.