Seco 03272905 Milling Insert XNEX040304TR-M08 MP1501

Product Description

The SECO 03272905 is a solid carbide trigon milling insert carrying the ANSI/ISO designation XNEX040304TR-M08 in manufacturer grade MP1501. This double-sided, right-hand insert delivers six cutting edges per piece, extending tool life between index cycles. It is finished with a CVD-applied TiCN and Al2O3 Duratomic coating for thermal resistance and wear protection during milling operations. The insert measures 0.1575 inches in length, 0.2638 inches across the inscribed circle, and 0.1295 inches thick. A corner radius of 0.0157 inches (1/64 inch) and a T-Land cutting edge style support controlled chip formation in demanding milling applications. The M08 chip breaker geometry is optimized for medium-cut conditions in steel and cast iron.

This insert is intended for milling steel, cast iron, and hard materials in both production and job-shop environments. It is suited for use in CNC milling centers and manual milling machines where the compatible cutter bodies are mounted. The insert is screw-held, uses a negative rake geometry with a rake angle of 27 degrees, and a relief angle of 0 degrees, which is standard for this insert style. Workpiece material codes P, K, and H indicate primary suitability for steel, with secondary coverage of cast iron and hard materials. Installation is performed by machining professionals and tooling specialists who set up and maintain indexable cutting tool assemblies.

Key Features

• Six cutting edges per insert — double-sided trigon geometry maximizes index cycles
• CVD TiCN and Al2O3 Duratomic coating for heat resistance and extended tool life in steel and cast iron
• M08 chip breaker geometry engineered for medium-cut milling conditions
• T-Land cutting edge style for improved edge strength and chip control
• Negative rake with 27-degree rake angle — compatible with XNEX-04 series cutter bodies
• Maximum depth of cut: 0.1575 inches (2.00 mm) — right-hand insert orientation

Compatibility

Compatible cutter series as stated in product data: R217-96-04 and R220.96-04. Designed for use in indexable milling cutter bodies that accept the XNEX-04 insert series with screw-hold mounting.

Installation Notes

Indexing and insert replacement should be performed by a qualified machinist or tooling technician with the machine spindle fully stopped and the machine locked out per applicable safety procedures. Use the correct Torx or hex key for the clamping screw — refer to the cutter body manufacturer torque specification for the specific cutter body in use, as that value is not defined by the insert itself. Inspect the insert pocket seating surface and clamping screw condition before seating a new insert. Confirm insert orientation matches the right-hand designation before resuming cuts.