Harvey Tool 875478-C6 Square End Mill 5/64 in 4 Flute Altin

Product Description

The HARVEY TOOL 875478-C6 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. With a 5/64 inch (0.0780 inch decimal) mill diameter and a 15/64 inch (0.234 inch decimal) length of cut, this tool is built for tight-tolerance work in small-diameter applications. The 4-flute geometry combined with a variable 34-degree helix angle promotes efficient chip evacuation and improved surface finish. An AlTiN coating adds heat resistance and extends tool life when cutting ferrous materials and hardened steels. This end mill is a single-end tool with right-hand cutting and right-hand flute direction.

This end mill is suited for CNC milling operations in job shops, aerospace component machining, die and mold work, and precision manufacturing environments. The small diameter and short length of cut make it appropriate for fine-feature slotting, profiling, and contouring passes. It is not centercutting, so it is not intended for direct plunge operations. This tool is typically installed and run by machinists and CNC operators working with vertical or horizontal machining centers.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cuts
• AlTiN coating provides high-temperature resistance and extended tool life in ferrous materials
• Variable helix angle reduces harmonic vibration and improves surface finish
• 4-flute design balances chip clearance with maximum material removal at small diameters
• Right-hand cut and right-hand flute direction for standard CNC spindle compatibility
• Single-end configuration with 1/8 inch shank diameter for standard collet or chuck mounting

Compatibility

Designed for use in CNC machining centers and manual mills accepting a 1/8 inch shank diameter. Compatible with standard ER collets, precision chucks, and other toolholding systems sized for 0.125 inch shank end mills.

Installation Notes

Installation and tool changes must be performed with the spindle fully stopped and the machine in a locked-out state per applicable machine guarding and lockout/tagout procedures. Seat the 1/8 inch shank fully and evenly in the collet or chuck before tightening to manufacturer-specified toolholder torque values. Do not use this tool for plunge cuts, as it is not centercutting. Verify runout after installation to protect the tool and workpiece finish at this small diameter.