Harvey Tool 888431-C3 Square End Mill 0.031 3 Flute Carbide

Product Description

The HARVEY TOOL 888431-C3 is a solid carbide square end mill designed for precision milling in demanding machining applications. With a 0.0310-inch cutting diameter and a 0.125-inch length of cut, this tool is built for fine-detail work in tight geometries. Three flutes and a 30-degree helix angle deliver a balance of chip evacuation and surface finish quality. The AlTiN coating provides thermal resistance and extended tool life when cutting hard or abrasive materials. At 2.5 inches overall length and a 0.125-inch shank diameter, this end mill fits standard collet systems found on CNC machining centers and manual mills.

This end mill suits precision CNC milling operations in aerospace, medical device, die and mold, and general metalworking environments. The small diameter makes it appropriate for fine-feature slotting, profiling, and pocketing in ferrous and non-ferrous metals. Centercutting capability allows for direct plunge entry. Right-hand cut and right-hand flute geometry are standard for conventional milling setups. The 0.0310-inch diameter falls within the 0.100- to 0.200-inch length-of-cut range class, making it well suited for micro-milling tasks requiring tight tolerances.

Key Features

• 0.0310-inch cutting diameter for fine-feature and micro-milling work
• Solid carbide construction for rigidity and wear resistance
• AlTiN coating for high-heat resistance and extended tool life
• 30-degree helix angle balances chip flow and finish quality
• Centercutting design allows direct plunge milling
• Right-hand cut, right-hand flute geometry for standard CNC setups

Compatibility

Designed as a direct-fit replacement or new-installation end mill for standard 0.125-inch collet or end mill holder systems on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by machinists or CNC setup technicians using an appropriate collet or end mill holder sized for the 0.125-inch shank. Ensure the machine spindle is fully stopped and locked out before tool changes. Confirm runout with a dial indicator after seating to avoid premature wear or breakage on this small-diameter tool. Follow the machine manufacturer and tooling guidelines for speed and feed parameters appropriate to the workpiece material.