Harvey Tool 956878-C3 Square End Mill 5/64 in 4 Flute Altin

Product Description

The HARVEY TOOL 956878-C3 is a solid carbide square end mill designed for precision milling in ferrous and high-temperature alloy materials. With a 5/64 inch (0.0780 inch) mill diameter and 4 helical flutes, this tool delivers clean, accurate cuts in tight geometries. The AlTiN coating improves heat resistance and tool life in demanding applications. At 1-1/2 inches overall length with a 15/64 inch (0.234 inch) length of cut, this is a compact single-end mill suited for machining small features. It is installed and operated by machinists and CNC tooling professionals working in job shop, aerospace, medical, and precision manufacturing environments.

This end mill is suited for small-feature milling operations where tight tolerances and minimal tool deflection are critical. The straight cylindrical 1/8 inch shank fits standard collet systems used on CNC machining centers and manual mills. The extended reach design, with a 0.406 inch reach length, allows access into pockets and slots that standard-length tools cannot reach. Right-hand cutting and right-hand flute direction are standard configurations for conventional and climb milling on CNC equipment.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating for elevated heat resistance and extended tool life
• 4 helical flutes for efficient chip evacuation and smooth finish
• Centercutting geometry allows plunge entry into workpiece
• Extended reach at 0.406 inches for access to deep pockets and restricted features
• Right-hand cut and right-hand helix for standard CNC milling operations

Compatibility

Designed for use in standard 1/8 inch collet systems on CNC machining centers and manual milling machines. Suitable for milling ferrous metals, stainless steels, titanium, and high-temperature alloys where AlTiN coating performance is applicable.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle and collet are clean and within tolerance before seating the 1/8 inch shank. Verify runout with a dial indicator after tooling is secured. Follow machine manufacturer guidelines for spindle speeds and feed rates appropriate to the material being cut and the tool diameter.