Kennametal 4067267 Corner Radius End Mill 5/8 in 4 Flute

Product Description

The KENNAMETAL 4067267 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. Built on the HPHV series platform, it features a 5/8 inch diameter, a 0.12 inch corner radius, and four flutes with a high helix spiral geometry. An AlTiN PVD coating extends tool life when cutting ferrous materials and hard alloys. The 2.125 inch length of cut with extended reach makes it suitable for deep-pocket and slotting operations where shorter tooling cannot reach. The Weldon flat shank provides positive drive and minimizes pullout under high feed conditions. This tool handles both roughing and finishing passes in a single setup.

The 4067267 is suited for machining steel, stainless steel, cast iron, and hard materials in CNC milling operations on vertical and horizontal machining centers. The centercutting design allows plunge entry, expanding its use in interpolation and ramping applications. The extended reach geometry and long flute length make it particularly useful for deep-wall pockets, mold cavities, and fixture components where rigidity and reach must be balanced. It is compatible with EM-CV Form AD and EM IN-HSK Form A toolholding systems. Machinists and tool-and-die professionals working in production and job-shop environments will find this end mill appropriate for a broad range of milling tasks on ferrous and hard workpieces.

Key Features

• 0.12 inch corner radius reduces stress concentration and improves surface finish at pocket floors
• AlTiN PVD coating provides heat resistance and extended tool life on steel, stainless steel, cast iron, and hard materials
• Submicron solid carbide substrate delivers rigidity and wear resistance compared to HSS tooling
• Centercutting geometry permits plunge, ramp, and helical interpolation entry without a pre-drilled hole
• Weldon flat shank ensures positive drive and resists pullout in high-torque cutting conditions
• Extended reach with 2.125 inch length of cut suits deep-pocket and long-reach milling applications

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. Accepts standard 5/8 inch ID collets, milling chucks, and Weldon-style sidelock holders.

Installation Notes

Installation should be performed by a qualified machinist following the toolholder manufacturer torque specifications for the specific holder type in use. Ensure the machine spindle is fully stopped and the control is in an estop or tool-change state before mounting or removing the end mill. Verify runout at the tool tip after clamping, as excessive runout accelerates edge wear and degrades surface finish. Confirm feed, speed, and depth-of-cut parameters match the workpiece material and toolholder rigidity before beginning the cut.