Seco 02426750 Milling Insert SEMX1204AFTN-M15 F40M Carbide

Product Description

The SECO 02426750 is a solid carbide milling insert carrying manufacturer part number SEMX1204AFTN-M15 in grade F40M. This square-geometry insert features a fine-grain carbide substrate with a PVD-applied TiAlN and TiN dual coating for wear resistance across demanding cutting applications. With four usable cutting edges, a positive rake angle of 4 degrees, a T-Land cutting edge style, and a 90-degree included angle, this insert is engineered for efficient chip formation and consistent tool life. It is single-sided and mounted by screw into compatible cutter bodies. Licensed machinists and CNC tooling specialists are the primary installers.

This insert is suited for milling operations on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The M15 chip breaker geometry supports medium cutting conditions where controlled chip flow is critical. Compatible cutter series include R217.53-12 and R220.53-12 as stated by the manufacturer. The insert follows ISO standards and carries the ANSI and ISO code SEMX1204AFTN-M15, making cross-referencing straightforward for tooling engineers and procurement teams. Typical applications span both roughing and semi-finishing passes in production machining environments.

Key Features

• Solid carbide fine-grain substrate with PVD TiAlN and TiN dual coating for extended wear resistance
• Four cutting edges per insert for maximum value per piece
• Positive rake angle with T-Land edge prep supports efficient chip formation and reduced cutting forces
• M15 chip breaker geometry optimized for medium-condition milling on a broad range of workpiece materials
• 90-degree included angle and neutral hand orientation for versatile cutter body compatibility
• Screw-lock insert holding method for secure, repeatable positioning in the cutter pocket

Compatibility

Compatible with SECO cutter series R217.53-12 and R220.53-12 as specified by the manufacturer. Insert conforms to ANSI and ISO designation SEMX1204AFTN-M15 within the SEMX-12 series.

Installation Notes

Installation and indexing should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before accessing the cutter body. Use the manufacturer-specified torx or hex key to seat the clamping screw to the cutter body torque specification — do not over-torque, as this can fracture the carbide insert. Inspect the insert pocket and seating surfaces for chips or debris before installing a new insert to ensure proper seating and runout.