Harvey Tool 826840-C3 Square End Mill 0.04 in Altin Carbide

Product Description

The HARVEY TOOL 826840-C3 is a solid carbide square end mill designed for precision milling in demanding applications. With a 0.04-inch cutting diameter and a 0.325-inch length of cut, this tool is built for tight-tolerance work in small-feature machining. The 1/8-inch shank diameter and 2.5-inch overall length make it well-suited for CNC machining centers and vertical mills. An AlTiN coating improves heat resistance and extends tool life in harder workpiece materials. Three flutes and a 30-degree helix angle promote efficient chip evacuation while maintaining surface finish quality. The centercutting geometry allows plunge entry without a pre-drilled hole.

This end mill is intended for use in precision machining environments where small-diameter tooling is required. Typical applications include slotting, profiling, and pocket milling in tool steels, stainless steel, aluminum, and similar materials. The right-hand cut and right-hand flute configuration is standard for conventional CNC setups. It is suited for prototype shops, tool-and-die operations, and production environments where fine detail and repeatability are required.

Key Features

• 0.04-inch cutting diameter for small-feature and micro-milling work
• AlTiN coating for elevated heat resistance and extended tool life
• Three-flute design with 30-degree helix for efficient chip removal
• Centercutting geometry allows direct plunge entry
• Right-hand cut and right-hand flute for standard CNC compatibility
• Solid carbide construction for rigidity and wear resistance

Compatibility

Designed as an OEM-style solid carbide square end mill suitable for CNC machining centers and vertical mills accepting a 1/8-inch shank diameter collet or tool holder.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Use a properly sized collet or end mill holder rated for a 1/8-inch shank to ensure secure clamping and runout control. Follow machine manufacturer guidelines and applicable shop safety procedures when setting tool length offsets and spindle speeds.