Kennametal 4067327 Corner Radius End Mill 1 in 4 Flute Altin

Product Description

The KENNAMETAL 4067327 is a solid carbide corner radius end mill engineered for high-performance roughing and finishing in demanding machining environments. Measuring 1 inch in diameter with a 3-inch length of cut and a 0.06-inch corner radius, this single-end tool is built to maintain edge integrity under the thermal and mechanical loads common in hard-material applications. The AlTiN PVD coating provides oxidation resistance and extended tool life at elevated cutting temperatures. With 4 flutes in a right-hand spiral configuration and a high helix style, it moves chips efficiently while maintaining surface finish quality. The HPHV series designation reflects its design for high-productivity, high-velocity cutting strategies used by experienced machinists and CNC programmers.

This end mill is suited for milling steel, stainless steel, cast iron, and hard materials across both roughing and finishing passes. Its extended reach configuration and 1-inch Weldon flat shank make it appropriate for deep-cavity work and setups where additional projection from the spindle is required. The 6-inch overall length accommodates workpiece configurations that demand clearance between the holder and the part surface. It is designed for use with compatible toolholding systems including EM-CV Form AD and EM IN-HSK Form A holders.

Key Features

• AlTiN PVD coating for high-temperature resistance and extended tool life in ferrous and hard materials
• 0.06-inch corner radius reduces stress concentration at the cutting edge and improves surface finish on profiled walls
• High helix style promotes efficient chip evacuation during both roughing and finishing passes
• Weldon flat shank provides positive drive and reduces pullout risk in high-feed applications
• Extended reach design accommodates deep-cavity and tall-workpiece machining setups
• Submicron carbide grade substrate delivers hardness and wear resistance in P, M, K, and H material categories

Compatibility

Compatible with EM-CV Form AD and EM IN-HSK Form A toolholding systems. Designed for machining steel, stainless steel, cast iron, and hard materials. The 1-inch Weldon flat shank fits standard 1-inch bore end mill holders with set-screw retention.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician familiar with end mill toolholding requirements. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the Weldon flat fully into the holder bore before tightening the set screw against the flat to prevent axial pullout under cutting loads. Verify runout with a dial indicator after installation and before engaging the workpiece.