Seco 10268418 Square End Mill 3/8 Inch 4 Flute Solid Carbide

Product Description

The SECO 10268418 is a 4-flute, solid carbide square end mill designed for material removal in ferrous and high-temperature alloy machining applications. With a 0.375-inch mill diameter and a 0.750-inch length of cut, this single-end tool delivers precise slotting, profiling, and peripheral milling. The SIRON-A coating provides thermal and oxidation resistance, extending tool life when cutting steel, stainless steel, cast iron, and high-temp alloys. The micrograin carbide substrate supports high-speed feeds and speeds while maintaining edge integrity under demanding cutting conditions. Licensed machinists and CNC operators in job shops and production environments rely on this geometry for consistent performance in short-reach applications.

This end mill is suited for use in vertical machining centers, CNC mills, and manual knee mills capable of holding a 0.375-inch Weldon flat shank. The 30-degree right-hand helical flute geometry promotes efficient chip evacuation and smooth surface finishes on steel and stainless steel workpieces. The short-length profile and 0.750-inch reach length make it a practical choice for slotting and side milling where rigidity and minimal runout are priorities. Primary workpiece material categories include P (steel), M (stainless steel), K (cast iron), and S (high-temp alloy).

Key Features

• SIRON-A coating for enhanced heat and oxidation resistance in ferrous and high-temp alloy cuts
• 4-flute, right-hand helical geometry at 30 degrees for efficient chip flow and surface finish
• Micrograin solid carbide substrate for edge retention at elevated cutting speeds
• Weldon flat shank provides positive drive and minimizes pullout in high-feed applications
• Centercutting design allows plunge entry without a pre-drilled hole
• TIR maximum of 0.0005 inches ensures tight tolerancing and dimensional accuracy

Compatibility

Compatible with machining centers and CNC mills equipped with 3/8-inch Weldon flat shank toolholders. Intended for cutting steel, stainless steel, cast iron, and high-temperature alloys per ISO material groups P, M, K, and S. Part of the SECO C5141 series short-length end mill line.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and machine is in a safe state before mounting or removing the tool. Seat the Weldon flat against the set screw in the toolholder and torque to the toolholder manufacturer's specification to prevent pullout. Verify runout at the cutting edge with a test indicator before beginning production cuts.