Seco 74008790 Milling Insert SEKR1203AFTN-ME10 T25M Carbide

Product Description

The SECO 74008790 is a solid carbide milling insert carrying the manufacturer designation SEKR1203AFTN-ME10 in the SEKR-12 series. It features a square shape with a 90-degree included angle, a neutral hand orientation, and a positive rake geometry with a T-Land cutting edge style. The insert is CVD-coated with TiCN for wear resistance in demanding milling applications. With four usable cutting edges and a maximum depth of cut of 0.3465 inches, it is suited for high-productivity face and shoulder milling operations. Installation and tooling setup are handled by machining professionals in metalworking environments.

This insert is designed for milling steel, stainless steel, superalloys, and titanium workpiece materials. The ME10 chip breaker geometry supports controlled chip formation across these material groups. It is retained in the cutter body via a wedge clamp system and is compatible with the R220.13-12 cutter series. Typical applications include face milling, shoulder milling, and medium-grain material removal operations in production machining and job-shop environments. The T25M grade is optimized for the workpiece material range designated by ISO material codes P, M, and S.

Key Features

• Solid carbide substrate with CVD-applied TiCN coating for extended tool life in steel and stainless applications
• Square insert shape with 90-degree included angle and positive rake for reduced cutting forces
• Four cutting edges per insert for maximum cost efficiency per edge
• ME10 chip breaker designed for steel, stainless steel, superalloys, and titanium
• Wedge clamp holding method for secure seating in compatible cutter bodies
• Maximum depth of cut of 0.3465 inches with a 0.0394-inch corner radius

Compatibility

Compatible with the R220.13-12 cutter series. Suited for ISO material groups P (steel), M (stainless steel), and S (superalloys and titanium). ANSI and ISO designation: SEKR1203AFTN-ME10. Insert size code 1203 with inscribed circle range of 0.5000 to 0.5100 inches.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or clamp screw driver as specified by the cutter body manufacturer to secure the wedge clamp without over-torquing. Verify insert seating and cutter runout before resuming cutting operations.