Kennametal 6769783 Corner Radius End Mill 5/8 in 5 Flute

Product Description

The KENNAMETAL 6769783 is a solid carbide corner radius end mill designed for high-performance milling in demanding material applications. Part of the KOR5 series, it features a 5/8-inch diameter, five flutes, and a 0.03-inch corner radius that reduces edge chipping and extends tool life in aggressive cuts. The AlTiN PVD coating provides thermal resistance and hardness retention at elevated cutting temperatures. With a 1-7/8-inch length of cut and 4-inch overall length, this single-end tool is suited for both roughing and finishing passes. It is installed and operated by machinists and CNC programmers working in precision manufacturing environments.

This end mill is engineered for use on steel, stainless steel, cast iron, superalloys, titanium, and hard materials. The high-helix spiral flute geometry promotes efficient chip evacuation and smooth cutting action across these material classes. Coolant-through capability supports extended tool life and thermal management in deep-cavity or high-feed applications. The straight cylindrical 5/8-inch shank is compatible with HC-HSK Form A toolholders. It is well suited for vertical and horizontal machining centers running right-hand cutting direction with normal pitch.

Key Features

• 0.03-inch corner radius reduces stress concentration and edge breakout on hardened and abrasive workpieces
• AlTiN PVD coating delivers high heat resistance for dry or semi-dry cutting of steel, stainless, and superalloys
• Five-flute, high-helix spiral geometry supports both roughing and finishing in a single tool
• Coolant-through design enables effective thermal control and chip flushing in deep cuts
• Submicron carbide grade provides uniform hardness and fracture toughness across the cutting edge
• Single-end construction with standard length type for consistent reach in common milling setups

Compatibility

Designed for use with HC-HSK Form A toolholders. Compatible workpiece materials include steel, stainless steel, cast iron, superalloys, titanium, and hard materials (ISO material codes P, M, K, S, H).

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill from the toolholder. Verify toolholder bore cleanliness and runout before tightening to prevent premature edge wear. Follow the machine tool manufacturer and cutting tool manufacturer feed and speed guidelines for the specific workpiece material and depth of cut.