Kennametal 6676496 Corner Radius End Mill 1/2 in 4 Flute Altin

Product Description

The KENNAMETAL 6676496 is a solid carbide corner radius end mill designed for high-performance milling in demanding metalworking applications. It features a 1/2 inch cutting diameter with a 0.06 inch corner radius, a 4-flute spiral geometry, and a right-hand cutting direction. The AlTiN PVD coating provides thermal resistance and wear protection, making this tool well-suited for dry and semi-dry cutting conditions. With a 0.63 inch length of cut and 2.5 inch overall length, the H1TE series geometry is engineered for both roughing and finishing passes in a single setup. Machinists and CNC operators install this tool in production and job shop environments where surface finish and tool life matter.

This end mill is intended for use on steel, stainless steel, cast iron, superalloys, titanium, and hard materials. It is suited for CNC machining centers and manual mills where a short-length, single-end corner radius tool is required. The Weldon flat shank provides positive drive and reduces pullout risk during aggressive cuts. The centercutting design allows for plunge operations as well as conventional and climb milling. Compatible toolholders include EM-CV Form AD and EM IN-HSK Form A holders.

Key Features

• 0.06 inch corner radius reduces stress concentration and improves edge life at part corners
• AlTiN PVD coating rated for steel, stainless steel, cast iron, superalloys, titanium, and hard materials
• 4-flute spiral geometry supports both roughing and finishing material removal
• Centercutting design enables plunge entry without a pre-drilled hole
• Weldon flat shank provides secure clamping and minimizes tool pullout
• Submicron carbide grade for increased toughness and edge retention in hard and abrasive materials

Compatibility

Compatible with EM-CV Form AD and EM IN-HSK Form A toolholders. Designed as an OEM Kennametal H1TE series replacement or new-installation end mill for CNC machining centers using 1/2 inch diameter collets or Weldon flat-style holders.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before tool changes. Verify holder bore and set screw engagement against the Weldon flat before running at speed. Consult the machine tool manual and applicable shop safety procedures for maximum RPM and feed rate settings appropriate to the workpiece material.