Iscar 5620513 Square End Mill 3.8mm 3 Flute Solid Carbide

Product Description

The ISCAR 5620513 is a solid carbide square end mill designed for precision milling operations in metalworking applications. With a 3.8 mm cutting diameter and three right-hand spiral flutes at a 38-degree helix angle, it delivers efficient chip evacuation and consistent cutting performance. The TiAlN coating extends tool life in demanding materials by reducing heat buildup at the cutting edge. The stub-length profile and 5 mm length of cut make it well suited for high-rigidity setups where minimizing deflection is critical. This tool is installed by machinists and CNC programmers working in job shops, tool rooms, and precision manufacturing environments.

This end mill is rated for use across a broad range of workpiece materials, including hardened steels, cast irons, stainless steels, general steels, and high-temperature alloys, corresponding to material codes H, K, M, P, and S. The 6 mm Weldon flat shank provides positive drive and accurate tool holding in standard ER or side-lock collet systems. Its center-cutting geometry allows direct plunge entry as well as conventional peripheral and slot milling. The stub-length design keeps overhang minimal, which is especially useful in tight-tolerance finishing passes.

Key Features

• 3.8 mm cutting diameter with a mill diameter tolerance of -0.020 to 0.038 mm for precise fitment
• Three right-hand spiral flutes at 38-degree helix angle for efficient chip evacuation
• TiAlN coating for extended tool life in ferrous and high-temperature alloy applications
• Center-cutting design permits plunge milling and ramping operations
• Weldon flat shank provides positive rotational drive in side-lock and set-screw holders
• IC900 material grade solid carbide substrate for rigidity and wear resistance

Compatibility

Designed for use with standard 6 mm Weldon flat tool holders. Rated for workpiece material codes H, K, M, P, and S, covering hardened steels, cast irons, stainless steels, carbon and alloy steels, and high-temperature alloys.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the tool. Torque the set screw against the Weldon flat according to the tool holder manufacturer specification. Verify runout at the cutting diameter before beginning production cuts.