Harvey Tool 943208-C3 Square End Mill 1/8 in 4 Flute Altin

Product Description

The HARVEY TOOL 943208-C3 is a solid carbide square end mill designed for precision milling in demanding metalworking applications. It features a 1/8 inch (0.1250 inch) cutting diameter, a 3/16 inch (0.187 inch) length of cut, and four flutes ground with a 30-degree right-hand helix. The AlTiN coating improves heat resistance and extends tool life in ferrous and hard materials. With a 2-1/2 inch overall length and a reduced 3 mm (0.1181 inch) shank diameter, this end mill is suited for CNC machining centers where a reduced-shank configuration is required. It is centercutting, allowing plunge entry into the workpiece.

This end mill is used in precision CNC milling operations on ferrous metals, stainless steels, titanium, and hardened alloys where heat generation and tool wear are primary concerns. The reduced shank allows it to fit standard collet toolholders while reaching into tighter workspaces. Machinists and tooling technicians working in aerospace, medical device, and precision job-shop environments will find this geometry suitable for slotting, profiling, and pocketing operations within its length-of-cut range of 0.100 to 0.200 inches.

Key Features

• 1/8 inch cutting diameter with four-flute geometry for improved chip evacuation and surface finish
• AlTiN coating for high heat resistance and extended tool life in hard and ferrous materials
• 30-degree right-hand helix angle balances cutting forces and reduces chatter
• Centercutting design allows direct plunge entry without a pre-drilled pilot hole
• Reduced shank at 3 mm diameter enables use in tighter setups and extended-reach toolholders
• Solid carbide construction maintains rigidity and edge integrity at high spindle speeds

Compatibility

Designed as an OEM-style solid carbide square end mill compatible with standard CNC collet toolholders accepting a 3 mm shank diameter.

Installation Notes

Installation and tool changes should be performed by a qualified machinist or CNC tooling technician with the spindle fully stopped and machine in a safe, locked-out state. Seat the shank fully and evenly in the collet before torquing to the toolholder manufacturer's specification. Inspect the cutting edges and coating condition before mounting; carbide end mills are brittle and can chip if dropped or improperly handled. Follow the machine tool manufacturer's recommended runout tolerance for small-diameter tooling.