Kennametal 3658912 Corner Radius End Mill 1/2 in 2 Flute Carbide

Product Description

The KENNAMETAL 3658912 is a solid carbide corner radius end mill designed for precision material removal in non-ferrous metal applications. It features a 1/2 inch diameter, a 2 inch length of cut, and a 0.06 inch corner radius that reduces stress concentrations at the cutting edge and improves surface finish in radiused pocket floors and shoulders. The two-flute, right-hand spiral configuration supports efficient chip evacuation in aluminum, copper, and similar materials. With a 4 inch overall length and a submicron carbide grade, this tool is suited for CNC machining centers running high-speed finishing and roughing passes where edge integrity matters.

This end mill is intended for use in non-ferrous metal machining environments, including aerospace, automotive, and general fabrication shops. The long-reach geometry and 2 inch length of cut make it effective for deeper slot milling, pocket profiling, and contour work where standard-length tools cannot reach. It mounts in standard end mill toolholders with a 1/2 inch straight cylindrical shank. The centercutting design allows plunge entry. This tool is typically run by a CNC machinist or toolroom operator following shop-specified speeds and feeds for the target workpiece material.

Key Features

• 0.06 inch corner radius reduces edge chipping and stress risers on radiused features
• Solid submicron carbide construction for rigidity and wear resistance in non-ferrous cutting
• 2-flute right-hand spiral with coarse pitch promotes chip clearance in gummy materials
• Centercutting end geometry allows direct plunge entry without a pre-drilled hole
• Bright/uncoated finish suited for non-ferrous metals where coating adhesion can cause built-up edge
• Long-length series (AADF) with 4 inch OAL for extended-reach applications

Compatibility

Designed for use with standard end mill toolholders accepting a 1/2 inch straight cylindrical shank. Intended for non-ferrous metal workpiece materials. Series AADF long-length configuration.

Installation Notes

Installation and tool changes must be performed with the spindle fully stopped and machine power isolated per shop lockout/tagout procedures. Seat the shank fully in a clean, undamaged toolholder and torque the retention fastener to the toolholder manufacturer's specification. Inspect the corner radius and cutting edges for chips before mounting. Confirm runout with a dial indicator before committing to a finishing pass.