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The SECO 03115980 is a 6-flute solid carbide ball end mill engineered for high-performance material removal in demanding machining environments. Part of the SB638 series, it carries an AlTiN (aluminum titanium nitride) PVD coating that improves heat resistance and extends tool life at elevated cutting speeds. The 3/4-inch diameter cutting head features a 0.3750-inch nose radius and a 38-degree medium helix angle, promoting chip evacuation and reducing vibration during aggressive cuts. With a short-length classification and variable index geometry, this end mill is built for roughing operations where rigidity and cutting consistency matter.
This end mill is suited for machining steel, stainless steel, cast iron, superalloys, and titanium — material categories corresponding to ISO codes P, M, K, and S. The straight-cylindrical 3/4-inch shank fits standard toolholding systems used in vertical and horizontal machining centers. The 1-3/4-inch length of cut and 4-inch overall length make it a practical choice for short-reach roughing passes in close-tolerance workholding setups. Machinists running production runs in aerospace, die and mold, and general metalworking shops will find this tool well suited to high-material-removal-rate applications.
Designed as an OEM-style replacement or direct-use tooling solution for standard 3/4-inch straight-cylindrical toolholders on vertical and horizontal machining centers running steel, stainless steel, cast iron, superalloy, and titanium workpieces. Catalog reference number SB638-0.750-D2-B.0-Z6.
Installation is performed by qualified machinists or CNC setup technicians. Secure the straight-cylindrical shank in a properly sized collet or end mill holder, ensuring runout does not exceed the specified TIR maximum of 0.0005 inches. Verify spindle and toolholder cleanliness before seating the tool. Follow the machine tool manufacturer's recommended torque procedures for the toolholding system in use, and confirm workpiece clamping rigidity before initiating roughing passes.
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