Harvey Tool 923108-C4 Square End Mill 1/8 in 3 Flute Carbide

Product Description

The HARVEY TOOL 923108-C4 is a solid carbide square end mill designed for precision milling in demanding machining applications. With a 1/8 inch cutting diameter, a 5/8 inch length of cut, and a 2-1/2 inch overall length, this end mill is built for tight-tolerance work in small-feature geometry. The three-flute, variable helix design at 42 degrees reduces harmonic vibration and improves chip evacuation during high-speed cutting operations. An amorphous diamond coating extends tool life when machining abrasive non-ferrous materials, composites, and graphite. Licensed machinists and CNC operators in production and job-shop environments rely on this type of tooling for finish passes and contour work requiring minimal deflection.

This end mill is suited for CNC milling applications involving non-ferrous metals, carbon fiber, fiberglass, reinforced plastics, and graphite. The 1/8 inch shank diameter matches the cutting diameter, making it compatible with standard collet systems used in vertical machining centers, CNC routers, and high-speed spindles. The single-end configuration and right-hand cutting and flute direction are standard for conventional and climb milling setups. The centercutting capability allows plunge entry directly into the workpiece without a pre-drilled pilot hole.

Key Features

• Solid carbide construction for rigidity and wear resistance in abrasive materials
• Amorphous diamond coating optimized for non-ferrous, composite, and graphite machining
• 42-degree variable helix reduces chatter and improves surface finish
• Three-flute design balances chip clearance with cutting edge count
• Centercutting geometry allows direct plunge milling
• Right-hand cut and right-hand flute direction for standard spindle compatibility

Compatibility

Designed for use in CNC machining centers, CNC routers, and high-speed spindles equipped with 1/8 inch collets or end mill holders. Best suited for machining non-ferrous metals, composites, graphite, and reinforced plastics.

Installation Notes

Installation is performed by qualified CNC machinists or tooling technicians. Ensure the spindle is fully powered down and locked out before installing or removing the end mill from the collet or tool holder. Use a properly sized collet or shrink-fit holder to achieve the manufacturer-recommended runout tolerance for small-diameter carbide tooling. Avoid overtightening collet nuts, as uneven clamping force can induce runout and premature tool breakage.