Kennametal 4067253 Corner Radius End Mill 5/8 in 4 Flute

Product Description

The KENNAMETAL 4067253 is a solid carbide corner radius end mill designed for demanding material removal in steel, stainless steel, cast iron, and hard materials. With a 5/8 inch cutting diameter, a 0.06 inch corner radius, and four flutes, this end mill is built for both roughing and finishing passes in a single tool. The AlTiN (aluminum titanium nitride) PVD coating provides thermal resistance and extended edge life in high-heat cutting conditions. The submicron carbide grade substrate adds toughness and wear resistance at the cutting edge. It is a right-hand cutting, single-end tool suited for CNC machining centers in production and job shop environments.

This end mill is used in applications requiring tight corner radii and surface finish control on ferrous and hard workpiece materials. The short flute length and extended reach configuration make it well suited for shoulder milling, slotting, and profiling operations where rigidity matters. The Weldon flat shank provides positive drive and reduces pullout risk in high-feed operations. It is sized for use with EM-CV Form AD and EM IN-HSK Form A toolholding systems as noted by the manufacturer. Licensed machinists and CNC programmers in aerospace, die and mold, and general metalworking shops are the primary installers and users.

Key Features

• Solid carbide construction in submicron grade for rigidity and edge retention
• AlTiN PVD coating rated for high-temperature cutting in steel and hard materials
• 0.06 inch corner radius reduces stress concentration and improves workpiece surface finish
• Four-flute, right-hand spiral geometry supports both roughing and finishing material removal
• Weldon flat shank minimizes tool pullout under aggressive cutting loads
• Centercutting design allows plunge entry without a pre-drilled hole

Compatibility

Compatible with EM-CV Form AD and EM IN-HSK Form A toolholding systems per manufacturer specification. Intended for use on CNC machining centers cutting steel, stainless steel, cast iron, and hard materials in the P, M, K, and H material grade classifications.

Installation Notes

Install in a Weldon flat-style collet or end mill holder and confirm holder runout before cutting. Power down and lock out the spindle before changing or measuring the tool. Follow the machine tool manufacturer guidelines and applicable ANSI or OSHA machining safety standards for rotating tool changes. Do not exceed the recommended cutting parameters for the workpiece material grade and machine spindle power.