Kennametal 3658840 Corner Radius End Mill 0.5in 3 Flute Carbide

Product Description

The KENNAMETAL 3658840 is a solid carbide corner radius end mill designed for material removal in non-ferrous metal applications. It carries a 0.5-inch mill diameter, a 0.03-inch corner radius, and a 2.5-inch length of cut, making it well suited for extra-long reach finishing and roughing passes where a standard-length tool would fall short. The three-flute, right-hand spiral geometry promotes efficient chip evacuation, and the bright uncoated carbide surface is appropriate for the non-ferrous workpiece materials this tool targets. The submicron carbide grade delivers the edge toughness needed in demanding cuts.

This end mill is built for use in CNC machining centers and manual mills where non-ferrous metals such as aluminum, brass, or copper alloys are being machined. The extra-long 5-inch overall length suits deep-pocket milling, tall workpiece profiling, and setups where extended reach is a requirement. The single-end, centercutting design allows plunge entry as well as peripheral and slot cutting. It mounts in standard straight-bore end mill toolholders and collet chucks that accept a 0.5-inch straight-cylindrical shank.

Key Features

• 0.03-inch corner radius reduces stress concentration at the cutting edge and improves corner finish
• Three-flute right-hand spiral geometry promotes chip flow in non-ferrous materials
• Extra-long 5-inch OAL with 2.5-inch length of cut for deep-pocket and extended-reach applications
• Submicron solid carbide grade for edge retention in demanding cuts
• Bright uncoated finish suited to non-ferrous metal workpieces where coating adhesion is not required
• Centercutting design enables direct plunge entry without a pre-drilled pilot hole

Compatibility

Designed for use with standard end mill toolholders accepting a 0.5-inch straight-cylindrical shank. Part of the Kennametal AADE series, cataloged under manufacturers catalog number 4K6313065B. Primary workpiece material designation is non-ferrous metal (material code N).

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the toolholder is clean and free of chips before inserting or removing the end mill. Verify shank runout is within the tolerance required by the application before beginning a cut. Follow the toolholder manufacturer torque specifications for set screws or collet nuts - do not over-torque, as this can damage the shank finish on carbide tooling.