Kennametal 3660396 Roughing Finishing End Mill 1/4 in

Product Description

The KENNAMETAL 3660396 is a solid carbide roughing finishing end mill designed for aggressive material removal followed by a quality surface finish in a single tool. Built on the Series ABDF platform, it features a 1/4 inch diameter, 2 flutes, and a 45-degree helix angle that promotes efficient chip evacuation and reduced cutting forces. The square end geometry delivers flat-bottomed cuts, and the micrograin carbide substrate provides the hardness and wear resistance needed for consistent performance in ferrous and non-ferrous materials. Installed by machinists and tool-and-die professionals, this end mill suits both CNC machining centers and manual milling operations.

This end mill is suited for slot milling, peripheral milling, and profile cuts in small-diameter work where a single tool must handle both roughing and finishing passes. The 1/2 inch length of cut and 2-1/2 inch overall length make it appropriate for shallow-to-medium depth features in production and job-shop environments. The straight shank and standard regular-length configuration fit conventional collet and end mill holder tooling systems without modification.

Key Features

• Solid micrograin carbide construction for extended tool life and dimensional stability
• 45-degree helix angle promotes smooth chip flow and reduces cutting resistance
• Square end geometry for flat-bottomed slots and shoulder milling
• Center-cutting capable, allowing direct plunge entry into the workpiece
• Right-hand cut and right-hand flute direction for standard spindle compatibility
• Bright/uncoated finish suitable for use with cutting fluid in a wide range of materials

Compatibility

Designed as an OEM-style replacement or direct-fit end mill for 1/4 inch straight-shank collet systems and end mill holders used in standard CNC and manual milling applications.

Installation Notes

Installation is performed by qualified machinists following shop safety protocols. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank fully within the collet or holder to the recommended engagement depth and torque the retention hardware per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning a production run.