Kennametal 6767849 Corner Radius End Mill 3/8 in 4 Flute Altin

Product Description

The KENNAMETAL 6767849 is a solid carbide corner radius end mill designed for high-performance milling across a wide range of ferrous and difficult-to-machine materials. It features a 3/8 inch cutting diameter, a 0.015 inch corner radius, and four helical flutes with a 36-degree helix angle. The AlTiN (aluminum titanium nitride) PVD coating provides thermal resistance and wear protection at elevated cutting temperatures. The tool measures 4 inches overall length with a 1/2 inch length of cut and is built for both roughing and finishing operations. It is installed and operated by machinists and CNC tooling specialists in production and job shop environments.

This end mill is engineered for use on steel, stainless steel, cast iron, superalloys, titanium, and hard materials. It is suited for vertical machining centers and CNC milling applications where corner radius geometry is required to reduce stress concentration and improve surface finish at part edges. The Weldon flat shank provides positive drive engagement in standard end mill holders. With a 2 inch reach length and extended reach design, it is well suited for deeper pocket and cavity work where additional clearance is needed.

Key Features

• Solid carbide submicron-grade construction for rigidity and wear resistance in hard materials
• AlTiN PVD coating for high-temperature performance and extended tool life on ferrous alloys and superalloys
• 0.015 inch corner radius reduces edge chipping and stress concentration at workpiece corners
• Four right-hand helical flutes with normal pitch support both roughing and finishing material removal
• Weldon flat shank for secure, positive drive in standard end mill holders
• Center-cutting capable, allowing direct plunge entry into the workpiece
• Extended reach design with 2 inch reach length for deep pocket and cavity milling applications

Compatibility

Compatible with EM-CV Form AD and EM IN-HSK Form A toolholding systems. Designed as a direct-fit replacement for applications requiring a 3/8 inch shank, corner radius end mill within the KENNAMETAL H1TE series.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the Weldon flat shank fully in the holder and torque the set screw to the toolholder manufacturer specification. Verify runout with a dial indicator before cutting, as excess runout on a corner radius end mill accelerates uneven flute wear and can damage the workpiece finish.