Iscar 5620955 Square End Mill 0.437 in 4 Flute Solid Carbide

Product Description

The ISCAR 5620955 is a solid carbide square end mill designed for precision material removal in metalworking and machining applications. Built to ISCAR material grade IC900 and finished with a TiAlN coating, this end mill delivers thermal resistance and extended tool life under high-speed cutting conditions. It features a 0.4370 inch cutting diameter, a 1 inch length of cut, and a 45-degree helix angle for aggressive chip evacuation and reduced cutting forces. The 4-flute spiral configuration provides a strong, stable cutting edge suited for finishing and semi-finishing passes. CNC machinists and tool room operators are the primary users of this type of tooling.

This end mill is suited for milling ferrous and non-ferrous metals including steel alloys, cast iron, stainless steel, and high-temperature superalloys, as indicated by the ISO workpiece material codes P, M, K, H, and S. It is configured for right-hand cut with right-hand flute direction, making it compatible with standard CNC machining centers and manual mills using conventional spindle rotation. The straight-cylindrical shank at 0.4375 inch diameter fits standard ER and milling collet chucks. This is a regular-length tool without extended reach, appropriate for close-tolerance work where deflection must be minimized.

Key Features

• Solid carbide construction using ISCAR IC900 grade for rigidity and wear resistance
• TiAlN coating provides elevated heat resistance and extended tool life in dry or minimal-lubrication cutting
• 45-degree helix angle promotes efficient chip evacuation and smooth cutting action
• 4-flute spiral design balances material removal rate with surface finish quality
• Right-hand cut and right-hand flute direction for standard CNC spindle compatibility
• Non-centercutting geometry — not intended for direct plunge operations

Compatibility

Suitable for machining workpiece materials classified under ISO codes P (steel), M (stainless steel), K (cast iron), H (hardened materials), and S (superalloys and titanium). Fits standard 7/16 inch collet chucks and milling tool holders with a straight-cylindrical shank bore.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom personnel. Ensure the machine spindle is fully powered down and at rest before inserting or removing the end mill from the tool holder. Secure the shank fully within the collet or chuck to the recommended gauge-line depth to prevent pull-out under load. This tool is not centercutting — do not program direct axial plunge moves; use ramping or helical interpolation entry strategies instead.