Seco 02743853 Milling Insert XOEX120408R-M07 MM4500

Product Description

The SECO 02743853 is a solid carbide milling insert carrying the ANSI and ISO designation XOEX120408R-M07 in manufacturer grade MM4500. Designed for right-hand cutting, this parallelogram-shaped insert features a positive rake angle of 20.3 degrees and a honed cutting edge style that promotes clean shear action and reduced cutting forces. The CVD-applied TiCN and Al2O3 dual-layer coating provides thermal resistance and wear protection suited for demanding milling operations. With two cutting edges and a 1/32-inch corner radius, the insert delivers consistent performance in high-productivity face and shoulder milling applications.

This insert is engineered primarily for milling stainless steel and is also rated for steel, superalloys, and titanium workpieces under the ISO material codes P, M, and S. It fits cutter bodies in the R217.69-12 and R220.69-12 series, making it a standard choice for machinists running compatible SECO milling platforms. The M07 chip breaker geometry is optimized for medium-duty material removal where chip control and edge stability are both priorities. Installation is screw-held, consistent with standard indexable insert tooling practice.

Key Features

• CVD-applied TiCN and Al2O3 coating for thermal and abrasion resistance
• Positive rake angle of 20.3 degrees reduces cutting forces on difficult alloys
• Honed cutting edge style promotes edge stability and extends tool life
• Two cutting edges per insert for cost efficiency during indexing
• M07 chip breaker geometry suited for stainless steel and superalloy milling
• Compatible with R217.69-12 and R220.69-12 cutter body series

Compatibility

Compatible with SECO cutter body series R217.69-12 and R220.69-12. Rated for primary workpiece material stainless steel (ISO code M) and secondary workpiece materials steel (P), stainless steel (M), superalloys, and titanium (S).

Installation Notes

This insert is installed by qualified machinists or toolroom technicians using the screw-held clamping method standard to indexable milling tooling. Ensure the cutter body is fully de-energized and secured in a locked spindle or tool holder before indexing or replacing inserts. Use calibrated torque drivers appropriate to the cutter body manufacturer specifications. Inspect the insert pocket seat and clamping screw condition before seating a new insert to prevent premature edge failure.