Widia 5576604 Corner Chamfer End Mill 1/2 in 4 Flute Altin

Product Description

The WIDIA 5576604 is a solid carbide corner chamfer end mill designed for high-performance material removal in demanding machining environments. Built on the Series 4V05 platform, this single-end mill features a 1/2 inch cutting diameter, 4 flutes with a variable index geometry, and a 45-degree chamfer angle with a 0.0200 inch chamfer width. The AlTiN PVD coating provides thermal resistance and wear protection at elevated cutting speeds. At 2.5 inches overall length with a 5/8 inch length of cut, this tool is sized for standard reach milling operations on CNC machining centers and manual mills.

This end mill is suited for roughing and finishing operations across a range of workpiece materials including steel, stainless steel, cast iron, superalloys, titanium, and hard materials. The Weldon flat shank provides positive drive and reduces slippage in high-torque cutting conditions. Centercutting capability allows plunge entry, supporting slotting and pocket milling applications. The variable flute geometry reduces harmonic chatter, making it effective in both roughing passes and finish work where surface quality matters.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard material applications
• AlTiN PVD coating improves heat resistance and extends tool life in ferrous and superalloy cuts
• 45-degree chamfer angle with 0.0200 inch chamfer width for consistent edge preparation
• Variable index, 4-flute geometry reduces chatter during aggressive cuts
• Centercutting design supports plunge milling and pocket entry
• Weldon flat shank provides positive tool retention in standard end mill holders

Compatibility

Rated for primary use on steel (P), stainless steel (M), cast iron (K), superalloys and titanium (S), and hard materials (H). Secondary workpiece material is high temperature alloy (S). Fits standard 1/2 inch end mill holders and collet chucks compatible with Weldon flat shank tooling.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Secure the Weldon flat shank in a properly rated end mill holder and torque the set screw against the flat per the holder manufacturer specification. Verify tool runout with a dial indicator before cutting. Do not exceed the tool manufacturer rated speeds and feeds for the workpiece material and coating type.