Seco 74000323 Milling Insert APKX1604PDR-ME12 T25M Carbide

Product Description

The SECO 74000323 is a solid carbide milling insert carrying manufacturer part number APKX1604PDR-ME12, designed for use in indexable milling cutters in demanding metal-removal applications. Built to the APKX-16 series standard, this parallelogram-shaped insert features a T25M medium-grain carbide grade with a CVD-applied TiCN coating for thermal and abrasion resistance. The insert has a positive rake angle of 24 degrees, a honed cutting edge, and an 11-degree relief angle. With 2 cutting edges per insert and a right-hand orientation, it delivers consistent performance in high-feed and face-milling operations on steel, stainless steel, superalloys, and titanium. Licensed technicians and machinists in production and toolroom environments install this insert.

This insert is suited for milling steel, stainless steel, superalloys, and titanium in both production and job-shop environments. It is compatible with the R217.69-16 and R220.69-16 cutter series as stated by the manufacturer. The ME12 chip breaker geometry is optimized for medium-grain cutting conditions and controlled chip evacuation in finish-to-semi-finish milling passes on ferrous and exotic alloy workpieces. It is sold individually but carries a minimum order quantity of 10 units.

Key Features

• APKX parallelogram insert shape with 85-degree included angle for stable seating in compatible tool bodies
• T25M medium-grain solid carbide grade with CVD TiCN coating for wear and heat resistance
• Positive rake angle of 24 degrees reduces cutting forces on difficult-to-machine alloys
• Honed cutting edge style improves edge stability and reduces micro-chipping
• Right-hand, single-sided insert with screw holding method for repeatable indexing
• Maximum depth of cut of 0.622 inches with a cutting edge effective length of 0.6598 inches

Compatibility

Compatible with SECO cutter series R217.69-16 and R220.69-16 as specified by the manufacturer. Designed for machining steel, stainless steel, superalloys, and titanium workpiece materials per ISO material grade codes P, M, and S.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the manufacturer-specified torx or hex key for the insert clamping screw and avoid over-torquing, which can crack the carbide body. Inspect the insert pocket and seating surface for chips or debris before seating a new insert to ensure proper contact and runout.