Kennametal 4155723 Milling Insert EDPT140408PDSRGD2 KC725M

Product Description

The KENNAMETAL 4155723 is a solid carbide milling insert carrying the ISO designation EDPT140408PDSRGD2 and manufactured to the KC725M grade. It features a parallelogram insert shape in the EDPT series with a three-layer PVD coating stack of TiN, TiCN, and TiN, which delivers thermal resistance and wear protection in demanding milling operations. The insert has a 15-degree relief angle, a honed T-Land cutting edge style, and a GD2 chip breaker geometry. It is held in place by a screw and is designed for right-hand cutting. Licensed HVAC machinists, toolroom operators, and production machining professionals install and index these inserts during scheduled tool maintenance or when replacing worn cutting edges on compatible milling toolholders.

This insert is engineered for milling steel, stainless steel, superalloys, and titanium, corresponding to ISO workpiece material codes P, M, and S. The GD2 chip breaker and KC725M grade combination is well suited to both roughing and semi-finishing passes where chip control and edge integrity are critical. The maximum depth of cut reaches 0.5512 inches (14.00 mm), making this insert appropriate for moderate-to-aggressive material removal strategies in aerospace, energy, and general metalworking applications. The insert size code is 1408 and the series designation is EDPT, which guides toolholder selection.

Key Features

• KC725M grade solid carbide substrate with PVD-applied TiN/TiCN/TiN multilayer coating for extended tool life in difficult-to-machine materials
• GD2 chip breaker geometry engineered for controlled chip formation in steel, stainless steel, superalloys, and titanium
• Honed T-Land cutting edge style reduces microchipping and improves edge stability at higher feed rates
• 15-degree relief angle supports low cutting forces and clean surface finishes
• Maximum depth of cut of 0.5512 inches (14.00 mm) supports moderate-to-aggressive milling passes
• Right-hand cutting orientation with screw-clamping insert holding method for secure, repeatable indexing
• 70-degree included angle parallelogram shape (EDPT series) for versatile pocket and face milling applications

Compatibility

Designed for use in EDPT-series milling toolholders that accept size 1408 inserts. Verify toolholder insert pocket geometry, seat dimensions, and screw specification before installation. No additional specific compatible toolholder model numbers were provided in the product data.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist or toolroom technician with the machine in a de-energized and locked-out state per applicable machine safety procedures. Use the correct torque screwdriver or insert-clamping tool specified by the toolholder manufacturer to secure the screw without over-torquing, which can crack the carbide insert. Inspect the insert seat and clamping screw for wear or debris before seating a new insert. Follow the toolholder manufacturer's setup sheet for recommended starting cutting parameters when using a new insert grade or chip breaker style.