Harvey Tool 72078-C4 Square End Mill 5/64 in 2 Flute Carbide

Product Description

The HARVEY TOOL 72078-C4 is a solid carbide square end mill designed for precision milling in tight-tolerance machining applications. With a 5/64 inch (0.0780 inch) cutting diameter and a 15/64 inch (0.2340 inch) length of cut, this end mill is built for small-feature work where dimensional accuracy is critical. The amorphous diamond finish reduces friction and extends tool life in abrasive materials. A 30-degree helix angle promotes smooth chip evacuation and stable cutting performance. This tool is installed and operated by machinists and CNC programmers working in job shop, production, and toolroom environments.

This end mill suits small-diameter milling operations on non-ferrous metals, plastics, composites, and graphite where fine detail and close tolerances are required. The centercutting geometry allows plunge cutting directly into the workpiece, adding versatility for slot milling, pocketing, and profiling. The 1/8 inch shank diameter fits standard collets and tool holders used on CNC machining centers and manual mills. The 1-1/2 inch overall length keeps overhang minimal for improved rigidity at this diameter.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cuts
• Amorphous diamond finish reduces friction and extends tool life in abrasive materials
• 30-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Centercutting design enables direct plunge entry for slot and pocket operations
• Right-hand cut and right-hand flute geometry for standard CNC and manual mill spindle direction
• 2-flute configuration provides chip clearance for small-diameter, fine-feature work

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for CNC machining centers and manual mills equipped with 1/8 inch collets or tool holders.

Installation Notes

Installation is performed by machinists or CNC tooling technicians. The machine spindle must be fully stopped and the tool holder secured in a clean, burr-free collet before tightening. Verify runout with a dial indicator after clamping, as excess runout at this diameter will accelerate tool wear and compromise surface finish. Follow machine manufacturer torque specifications for collet nut tightening.