Seco 03272676 Milling Insert MP2501 Solid Carbide

Product Description

The SECO 03272676 is a solid carbide trigon milling insert in the 218.19-160 series, designed for high-performance metal cutting in demanding machining environments. It carries SECO grade MP2501 with a CVD-applied Duratomic TiCN and Al2O3 multilayer coating for extended wear resistance at elevated cutting temperatures. The insert features a positive rake angle of 15 degrees, a T-Land cutting edge style, and a 12-degree relief angle. With a corner radius of 0.0472 inches (3/64 inch) and an inscribed circle of 0.4402 inches, it delivers consistent chip formation across a range of feed rates. Machinists and CNC operators in job shops and production facilities use this insert for turning and milling operations where tool life and surface finish consistency are critical.

This insert is rated primarily for steel (ISO material code P) and secondarily for stainless steel (M), cast iron (K), and superalloys and titanium (S). It seats via screw-hold mounting and is single-sided with three cutting edges per insert. The maximum depth of cut is 0.0790 inches. The M11 chip breaker geometry is suited for medium cutting conditions across the listed workpiece materials. It is compatible with SECO cutter series R217.21 and R220.21-R160, making it appropriate for face milling and shoulder milling applications on CNC machining centers.

Key Features

• Solid carbide fine-grain substrate for rigidity and edge retention in interrupted and continuous cuts
• CVD Duratomic TiCN plus Al2O3 coating for thermal resistance and reduced crater wear
• Trigon shape with 60-degree included angle and 3 usable cutting edges per insert
• M11 chip breaker geometry optimized for medium-condition milling in steel and stainless steel
• Positive rake (15 degrees) and T-Land edge style reduce cutting forces on the workpiece
• Screw-hold mounting with neutral hand orientation for straightforward indexing

Compatibility

Compatible with SECO cutter series R217.21 and R220.21-R160. The ANSI and ISO designation for this insert is 218.19-160T-04-M11. Verify seat and pocket geometry against the specific cutter body before ordering.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist with the spindle fully stopped and the machine locked out per applicable safety procedures. Use the correct Torx or hex key specified by the cutter body manufacturer when seating the clamping screw — overtightening or undertightening the screw can cause premature insert failure or pocket damage. Inspect the insert pocket and seating surfaces for chips or debris before installing a new insert. Dispose of used carbide inserts according to local regulations for metallic waste.