Seco 03084172 Corner Radius End Mill 1/2 in 4 Flute Carbide

Product Description

The SECO 03084172 is a solid carbide corner radius end mill designed for demanding metal removal in stainless steel, superalloys, and hard materials. It carries a 0.5000 inch mill diameter, a 1.2500 inch length of cut, and a 0.0300 inch corner radius that reduces stress concentration at the cutting edge and extends tool life in high-wear applications. The four-flute, single-end geometry is center-cutting, allowing plunge entry, and a variable helix promotes chip evacuation while reducing chatter. An AlTiN (PVD) coating adds thermal resistance, making this tool well-suited for dry or semi-dry cutting strategies common in aerospace and precision machining environments.

This end mill is intended for use in CNC machining centers and manual mills equipped with standard toolholders. It excels in finish and roughing passes on stainless steel, titanium, nickel-based superalloys, and other hard materials typically classified under ISO material groups M, S, and H. The Weldon flat shank provides positive drive and resists pullout under aggressive feed rates. The STR440.2 series is built for production environments where consistent dimensional accuracy and extended tool life between changes are priorities.

Key Features

• Solid micrograin carbide substrate for rigidity and edge retention in hard materials
• AlTiN PVD coating provides thermal and oxidation resistance during high-speed cutting
• Variable helix geometry reduces harmonic vibration and improves surface finish
• Center-cutting design enables direct plunge milling without a pre-drilled pilot
• Weldon flat shank resists axial pullout in high-torque toolholder setups
• 0.0300 inch corner radius strengthens the cutting edge and reduces chipping on part corners

Compatibility

Designed for use with standard toolholders accepting a 0.5000 inch shank diameter. Suitable for CNC machining applications involving stainless steel, superalloys, titanium, and hard materials per ISO material groups M, S, and H.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the toolholder bore and Weldon flat set screw are clean and free of chips before seating the shank. Verify runout does not exceed the specified TIR maximum of 0.0005 inch after clamping. Follow machine manufacturer and shop safety procedures when setting tool offsets and confirming feeds and speeds for the workpiece material.