Sumitomo 144WW4J Milling Insert ACM300 Solid Carbide Pvd

Product Description

The SUMITOMO 144WW4J is a solid carbide PVD-coated milling insert designed for high-performance metal cutting in demanding machining applications. It features an AXMT insert style with a parallelogram shape and an 85-degree included angle, giving it a right-hand cutting orientation suited to precision milling operations. The insert carries the ACM300 manufacturer grade and is finished with a PVD coating process to extend wear life. Key dimensional specs include an inscribed circle of 0.26 inches, a thickness of 0.14 inches, and a corner radius of 0.063 inches (1.60 mm). A maximum depth of cut of 0.394 inches (10.00 mm) and a cutting edge effective length of 0.472 inches support productive material removal rates.

This insert is intended for milling stainless steel and superalloys — workpiece material codes M and S — where edge toughness and coating adhesion are critical. It is compatible with the WEX2000 cutter series and uses an E chip breaker configuration. Typical users are CNC machining professionals and toolroom technicians running high-alloy or heat-resistant alloy components in aerospace, medical, and industrial manufacturing environments. The insert size code is 1235 with a full size designation of 123516.

Key Features

• ACM300 grade solid carbide with PVD coating for extended tool life in difficult-to-machine alloys
• AXMT insert style, parallelogram shape, 85-degree included angle with right-hand cutting orientation
• Corner radius of 0.063 inches (1/16 inch) for controlled surface finish and edge strength
• Maximum depth of cut of 0.394 inches (10.00 mm) supports productive milling passes
• E chip breaker geometry designed for stainless steel and superalloy chip control
• Compatible with WEX2000 cutter series for direct OEM-style replacement or new tooling setups

Compatibility

Designed for use with the WEX2000 cutter series. Primary workpiece material compatibility is stainless steel and superalloys (material codes M and S).

Installation Notes

Milling insert installation should be performed by a qualified CNC machinist or toolroom technician. Ensure the cutter body is fully de-energized and spindle is locked before seating or replacing inserts. Use the appropriate torx or hex key to the cutter body manufacturer's specified procedure when securing the insert screw. Inspect the insert pocket and seating surface for debris or damage before installing a new insert to ensure proper seating and runout.