Sumitomo 144W464 ACM300 Milling Insert Solid Carbide

Product Description

The SUMITOMO 144W464 is a solid carbide coated milling insert designed for high-performance metal removal in demanding milling applications. Built to the ACM300 grade specification, this insert features a parallelogram (AXMT) shape with an 85-degree included angle and an 11-degree relief angle. The PVD coating process delivers a hard, wear-resistant surface layer that extends tool life when cutting difficult materials. At 0.14 inches thick and 0.26 inches inscribed circle diameter, this right-hand insert fits within the WEX2000 cutter series. It is installed by machinists and tooling technicians working in production or job-shop environments.

This insert is suited for milling stainless steel and superalloys, material groups M and S, where edge integrity and thermal resistance are critical. The E chip breaker geometry supports controlled chip evacuation during interrupted or continuous cuts. With a maximum depth of cut of 0.394 inches (10.00 mm) and a cutting edge effective length of 0.472 inches, it handles moderate-to-aggressive radial and axial engagement in face and shoulder milling operations. Typical applications include aerospace component machining and precision stainless fabrication.

Key Features

• ACM300 grade solid carbide with PVD coating for extended wear life in M and S material groups
• AXMT parallelogram insert shape with 85-degree included angle and 11-degree relief angle
• E chip breaker geometry for controlled chip formation during stainless and superalloy cuts
• Maximum depth of cut: 0.394 inches (10.00 mm)
• Cutting edge effective length: 0.472 inches
• Right-hand cutting orientation; compatible with WEX2000 cutter series

Compatibility

Designed for use with the WEX2000 cutter series. Insert size code 1235 with an inscribed circle range of 0.2500 to 0.3000 inches and thickness range of 0.1250 to 0.1500 inches.

Installation Notes

Milling inserts should be installed and indexed by a qualified machinist or tooling technician. Power down and lock out the spindle before seating or replacing inserts. Use the appropriate torx or hex key specified by the cutter body manufacturer to achieve proper clamp force — do not over-torque the seating screw. Inspect the insert pocket and seating surface for chips or debris before installation to ensure full contact and prevent premature edge failure.