Seco 02566282 Milling Insert SEMX1204AFTN-M15 MK1500

Product Description

The SECO 02566282 is a solid carbide milling insert carrying ANSI/ISO designation SEMX1204AFTN-M15 and manufacturer grade MK1500. It features a square shape with a 90-degree included angle, four usable cutting edges, and a neutral hand orientation. The CVD-applied Duratomic coating combines TiCN and Al2O3 layers to deliver wear resistance and thermal stability during milling operations. With a 0.1874-inch thickness, a 0.5-inch inscribed circle, and a T-Land cutting edge style with a 4-degree rake angle and 20-degree relief angle, this insert is engineered for productive material removal. It is installed by machinists and toolroom technicians working with CNC or manual milling equipment.

This insert is intended primarily for milling cast iron (ISO material code K) in production and job-shop environments. The micrograin carbide substrate and Duratomic multilayer coating suit interrupted cuts and abrasive cast iron grades where edge stability is critical. The M15 chip breaker geometry is optimized for light-to-medium depths of cut up to 0.3425 inches. The screw-holding method provides positive clamping in compatible toolholders. Both high-volume production cells and lower-volume precision shops regularly use this insert family for face milling and shoulder milling cast iron components.

Key Features

• Square SEMX insert style with 90-degree included angle and four cutting edges per insert
• CVD Duratomic coating: TiCN plus Al2O3 multilayer for wear and heat resistance in cast iron
• Micrograin solid carbide substrate for edge integrity under abrasive cutting conditions
• M15 chip breaker geometry with positive rake and T-Land edge for controlled chip formation
• Maximum depth of cut of 0.3425 inches with a 0.5-inch effective cutting edge length
• Neutral hand orientation allows use in both climb and conventional milling setups

Compatibility

Compatible with SECO cutter series R217.53-12 and R220.53-12. Sold individually; minimum order quantity is 10 units.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Fully de-energize and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key to secure the clamping screw to the toolholder specification — do not overtighten, as this can fracture the carbide body. Inspect the insert pocket and seating surfaces for chips or debris before fitting a new insert.