Seco 02827893 SEEX1204AFTN-M14 MK2050 Carbide Milling Insert

Product Description

The SECO 02827893 is a solid carbide milling insert carrying ANSI and ISO designation SEEX1204AFTN-M14 in grade MK2050. This square-style indexable insert is designed for face and shoulder milling operations where consistent edge performance and wear resistance are required. It features a TiSiN and TiAlN dual-layer PVD coating applied over a medium-grain solid carbide substrate, delivering thermal stability and edge toughness at elevated cutting speeds. With four cutting edges, a positive rake angle of 5 degrees, and a T-Land cutting edge style, this insert is built for productive material removal in demanding milling applications. Machinists and tooling specialists install this insert into compatible Seco cutter bodies.

This insert is suited for milling cast iron as its primary workpiece material, with steel and hard materials as secondary applications. The neutral hand orientation and positive rake geometry make it a practical choice for both roughing and semi-finishing passes. It fits cutter series R217.53-12 and R220.53-12 as specified by the manufacturer. The M14 chip breaker geometry supports controlled chip formation in these material categories. This insert is sold individually with a minimum order quantity of 10 units and is appropriate for use in production machining environments where consistent insert dimensions and coating quality are critical to process repeatability.

Key Features

• Solid carbide medium-grain substrate with TiSiN and TiAlN PVD dual-layer coating for heat and wear resistance
• Four usable cutting edges per insert reduce per-edge tooling cost
• Positive 5-degree rake angle with T-Land edge style for controlled cutting action
• 20-degree relief angle supports clearance in tight milling geometries
• Maximum depth of cut of 0.3425 inches suits roughing and semi-finishing passes
• Neutral hand design compatible with standard screw-held insert pockets
• M14 chip breaker optimized for cast iron, steel, and hard material applications

Compatibility

Compatible with Seco cutter series R217.53-12 and R220.53-12. Insert is held by screw in standard SEEX-12 series insert pockets. ANSI and ISO code SEEX1204AFTN-M14 confirms dimensional fitment to ISO-standard toolholders accepting this insert designation.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and all stored energy is released before indexing or replacing inserts. Use the appropriate Torx or hex key specified by the cutter body manufacturer when seating the clamping screw — do not overtighten. Inspect the insert pocket seating surface for chips or debris before installing a new edge to ensure accurate seating and consistent runout.