Iscar 3401233 Corner Radius End Mill 1/2 in 4 Flute Carbide

Product Description

The ISCAR 3401233 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. Part of the ECI-4-VF series, it features a 1/2 inch diameter, a 1-1/4 inch length of cut, and a 1/8 inch corner radius that reduces stress concentration at the cutting edge. The AlTiCrSiN PVD coating delivers thermal and wear resistance during extended cutting cycles. With a variable index geometry and four right-hand spiral flutes, this tool is suited for both roughing and finishing passes in a single setup.

This end mill is intended for use in CNC machining centers and milling machines where a Weldon flat shank toolholder is used. Its extended reach design and medium length classification make it appropriate for cavity work, profiling, and slotting operations. Primary workpiece materials include steel, stainless steel, cast iron, superalloys, titanium, and hard materials. It is a single-end, center-cutting tool, allowing plunge entry into the workpiece. Typical end users are machinists and tool and die professionals working in job shop or production environments.

Key Features

• AlTiCrSiN PVD coating for high heat and wear resistance in hard and exotic materials
• Variable index flute spacing reduces chatter and improves surface finish
• 1/8 inch corner radius extends tool life by distributing cutting load away from sharp corners
• Center-cutting design permits direct plunge entry without a pre-drilled hole
• Weldon flat shank provides positive drive and prevents pullout under heavy cuts
• Submicron carbide grade substrate supports rigidity and edge integrity at elevated temperatures

Compatibility

Designed for use with standard Weldon flat shank toolholders. Compatible with workpiece materials coded P, M, K, S, and H, corresponding to steel, stainless steel, cast iron, superalloys and titanium, and hard materials. For use with toolholder systems accepting a 1/2 inch shank with h6 diameter tolerance.

Installation Notes

Installation should be performed by a qualified machinist following the toolholder manufacturer specifications for clamping torque and runout. Ensure the machine spindle and toolholder are fully de-energized and at rest before changing tooling. Verify shank seating depth and Weldon flat alignment in the toolholder before tightening set screws. Confirm runout with a dial indicator prior to the first cut to protect both the tool and the workpiece.