Harvey Tool 72025-C4 Square End Mill 0.025 in 2 Flute Carbide

Product Description

The HARVEY TOOL 72025-C4 is a miniature square end mill engineered for high-precision micro-machining applications. Built from solid carbide with an amorphous diamond finish, this single-end tool delivers exceptional wear resistance and surface quality in demanding cuts. It runs a 0.025-inch cutting diameter with a 0.075-inch length of cut (LOC), a 30-degree helix angle, and a 1/8-inch shank diameter with a 1-1/2-inch overall length (OAL). The centercutting geometry enables both plunge and peripheral milling operations. Machinists and tool-and-die professionals working in tight-tolerance environments specify this tool for intricate detail work, mold cavities, and fine feature generation.

This end mill is suited for precision machining centers and CNC milling operations where small-diameter tooling is required. Its right-hand cut and right-hand flute configuration make it compatible with standard spindle setups. The amorphous diamond coating is particularly effective when machining non-ferrous metals, graphite, carbon fiber, and composite materials where heat and abrasion are primary concerns. The 2-flute design at this diameter provides adequate chip clearance to reduce recutting and tool deflection in micro-scale cuts.

Key Features

• 0.025-inch cutting diameter with 0.075-inch length of cut for micro-detail work
• Solid carbide construction for rigidity and dimensional stability at small diameters
• Amorphous diamond finish for extended tool life in abrasive materials
• Centercutting design allows direct plunge entry into the workpiece
• 30-degree helix angle balances cutting efficiency with chip evacuation
• Right-hand cut, right-hand flute — standard spindle compatible

Compatibility

Designed as an OEM-style solid carbide square end mill for use in CNC machining centers and manual mills equipped with standard 1/8-inch collet or tool holder systems accepting a 0.125-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is in a safe state before loading or changing tooling. Seat the 1/8-inch shank fully and evenly in a properly sized collet or end mill holder to minimize runout, which is critical at this cutting diameter. At 0.025 inches, even minor runout or excessive overhang will significantly impact tool life and part accuracy.