Seco 03084144 Corner Radius End Mill 1/4 in 4 Flute Carbide

Product Description

The SECO 03084144 is a solid carbide corner radius end mill engineered for high-performance material removal in demanding applications. It carries a 1/4 inch diameter, a 3/4 inch length of cut, and a 0.0200 inch corner radius, making it well suited for blending corners and finishing contoured profiles with tight tolerances. The AlTiN PVD coating extends tool life in high-heat cutting environments. With a variable helix design and micrograin carbide construction, this single-end, centercutting tool handles both roughing and finishing passes. Licensed machinists and CNC operators working in production or job-shop environments will find this tool appropriate for stainless steel, superalloys, and hard material workpieces.

The 03084144 is intended for use in CNC machining centers and manual mills equipped with compatible straight-cylindrical shank toolholders. Its primary material applications include stainless steel, superalloys and titanium, and hard materials — categories identified by ISO material codes M, S, and H. The 2.5 inch overall length and 1/4 inch straight shank make it compatible with standard collet chucks and shrink-fit holders sized for 1/4 inch shanks. This end mill is part of SECO's STR440.2 series, which targets challenging-to-machine alloy and hard material applications.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance in hard materials
• AlTiN PVD coating reduces heat buildup and extends tool life in stainless steel and superalloys
• 0.0200 inch corner radius protects cutting edge and produces blended radii on finished surfaces
• Variable helix geometry reduces harmonic chatter during aggressive cuts
• Centercutting design allows plunge entry without a pre-drilled hole
• Right-hand cut and right-hand spiral flute direction for standard CNC spindle rotation
• 4-flute configuration balances chip evacuation with surface finish quality

Compatibility

Designed for use with straight-cylindrical shank toolholders accepting a 1/4 inch shank diameter. Suitable for CNC machining centers running stainless steel, superalloys, titanium, and hard material workpieces. Part of the SECO STR440.2 series.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer or spindle is locked out before loading the end mill. Seat the shank fully in the toolholder to the recommended gauge length and torque the collet nut or retention mechanism per the toolholder manufacturer's specifications. Verify runout against the TIR maximum of 0.0005 inch before initiating the cutting program.