Kennametal 3660402 Square End Mill 1/4 in 3 Flute Carbide

Product Description

The KENNAMETAL 3660402 is a solid carbide square end mill designed for high-performance material removal in non-ferrous metal applications. Built to the ABDE series specification, it features a 1/4 inch mill diameter, a 1/2 inch length of cut, and a 2-1/2 inch overall length. The 3-flute, right-hand spiral configuration with a high helix angle promotes efficient chip evacuation and smooth cutting action. A 0.03 inch corner radius adds edge strength and reduces chipping during aggressive roughing passes. The bright uncoated finish suits non-ferrous workpiece materials where coating adhesion or heat transfer is a concern. This tool is installed and run by machinists and CNC operators working in job shop and production environments.

This end mill is suited for roughing operations in non-ferrous metals such as aluminum, copper, and brass. The short length type and straight cylindrical shank make it compatible with standard collet chucks and hydraulic toolholding systems. Per supplier data, this tool is designed for use with HC 20M through HC 32M hydraulic sleeves metric with inch bores and the HC-CV Form AD toolholding system. The coarse pitch flute geometry supports high material removal rates in softer, gummy materials where chip packing is a common issue.

Key Features

• 1/4 inch diameter with matching 1/4 inch straight cylindrical shank for direct collet mounting
• 3-flute, high helix, right-hand spiral geometry optimized for non-ferrous roughing
• 0.03 inch corner radius on a corner radius end type for improved edge durability
• Centercutting design allows plunge entry into the workpiece
• Bright uncoated finish on submicron carbide grade for non-ferrous material compatibility
• Single-end configuration with 1/2 inch length of cut and 2-1/2 inch overall length

Compatibility

Designed for use with HC 20M through HC 32M hydraulic sleeves metric with inch bores and the HC-CV Form AD toolholding system. Suited for CNC milling applications in non-ferrous metal workpiece materials per KENNAMETAL ABDE series specifications.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Secure the shank in a clean, properly sized collet or hydraulic chuck and confirm runout before cutting. Ensure the machine spindle is fully stopped and the control is in an e-stop or tool-change state before inserting or removing the end mill. Do not exceed the rated length of cut when programming axial depth of cut parameters.