Kennametal 6676429 Corner Radius End Mill 0.5in 4 Flute

Product Description

The KENNAMETAL 6676429 is a solid carbide corner radius end mill designed for high-performance milling in demanding machining environments. Built on the H1TE series platform, it features a 0.5 inch diameter, a 1.5 inch length of cut, and a 0.06 inch corner radius that reduces stress concentration at the cutting edge and extends tool life. The AlTiN PVD coating provides excellent heat and oxidation resistance at elevated cutting temperatures. With four right-hand spiral flutes and a 36-degree helix angle, this end mill handles both roughing and finishing operations in a single tool. It is single-end and centercutting, allowing plunge entry into the workpiece.

This end mill is suited for milling steel, stainless steel, cast iron, superalloys, titanium, and hard materials. The straight cylindrical shank seats securely in standard end mill toolholders. Its standard length profile and normal pitch make it a practical choice for general machining centers and CNC mills handling production work on ferrous and exotic alloys. The submicron carbide grade provides consistent edge integrity across extended run times in both light finishing passes and moderate material removal operations.

Key Features

• 0.06 inch corner radius reduces edge chipping and improves surface finish at workpiece corners
• AlTiN PVD coating delivers oxidation resistance and hardness at high cutting temperatures
• Four right-hand spiral flutes with 36-degree helix support both roughing and finishing
• Centercutting design allows direct plunge entry without pre-drilling
• Submicron carbide grade provides uniform grain structure for edge toughness in hard and exotic materials
• Straight cylindrical shank is compatible with standard end mill toolholders

Compatibility

Designed for use with standard end mill toolholders. Suitable for machining steel, stainless steel, cast iron, superalloys, titanium, and hard materials as noted in ISO material application codes P, M, K, S, and H.

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 mounting or removing the tool. Seat the straight shank fully and evenly in the toolholder to the recommended gauge line before torquing the retention mechanism. Verify runout with a dial indicator before initiating a cut, as excessive runout accelerates flute wear and degrades surface finish.