Harvey Tool 73031-C3 Square End Mill 1/32 Inch 4 Flute Carbide

Product Description

The HARVEY TOOL 73031-C3 is a miniature square end mill designed for high-precision milling in tight geometries. Built from solid carbide and coated with AlTiN (aluminum titanium nitride), it delivers hardness and heat resistance suited for cutting ferrous alloys, hardened steels, and abrasive materials. The 4-flute design with a 30-degree helix angle promotes chip evacuation and surface finish quality at small scales. With a cutter diameter of 0.031 inches and a length of cut of 0.093 inches, this tool is built for micro-milling applications where accuracy and tool rigidity are non-negotiable. It is installed and run by machinists and CNC operators working in precision manufacturing environments.

This end mill is suited for precision contouring, slotting, and profiling operations in CNC machining centers handling small-feature work. Its centercutting capability allows plunge entry, adding flexibility in complex toolpath strategies. The 0.125-inch shank diameter accommodates standard miniature toolholders, and the 1.5-inch overall length keeps overhang minimal for improved rigidity. Typical applications include mold and die work, aerospace component machining, and medical device manufacturing where tight tolerances on small features are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating provides thermal resistance and extended tool life in ferrous and hardened stock
• 4-flute geometry with 30-degree helix angle for balanced chip load and surface finish
• Centercutting design enables direct plunge entry without pre-drilled pilot holes
• Right-hand cut, right-hand flute configuration for standard CNC spindle operation
• Miniature 0.031-inch diameter for micro-feature and fine-detail milling

Compatibility

Designed for use in CNC machining centers and high-speed spindles accepting a 0.125-inch shank diameter. Suitable for micro-milling applications on ferrous metals, hardened steels, and abrasive alloys where an AlTiN-coated solid carbide miniature end mill is specified.

Installation Notes

This tool should be installed by qualified machinists or CNC operators familiar with miniature tooling requirements. Ensure the spindle is fully stopped and the machine is in a safe state before loading or unloading. Use a properly sized collet or toolholder rated for a 0.125-inch shank to prevent runout, which is especially critical at this diameter. Handle miniature carbide end mills with care to avoid chipping the cutting edges prior to use.