Harvey Tool 943216-C3 Square End Mill 1/4 Inch 4 Flute

Product Description

The HARVEY TOOL 943216-C3 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous materials. With a 0.250 inch mill diameter, a 0.375 inch length of cut, and a 30-degree helix angle, this end mill delivers clean, accurate cuts in a compact profile. The AlTiN coating provides heat and wear resistance during high-speed machining operations. The reduced shank design accommodates collet setups where full-diameter shanks would not fit, making it a practical choice for tight-clearance work on CNC machining centers and manual mills. It is a single-end, centercutting tool capable of plunge entry.

This end mill is suited for production and job-shop environments running CNC vertical machining centers, CNC routers, and manual knee mills. The 4-flute configuration supports higher feed rates and improved surface finish in semi-finish and finish milling passes. The right-hand cut, right-hand flute geometry is the standard configuration for conventional and climb milling. It fits applications where a reduced shank is required to reach features or to match a smaller collet size while maintaining a larger cutting diameter.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cuts
• AlTiN coating for elevated heat resistance and extended tool life in ferrous materials
• 30-degree helix angle for smooth cutting action and chip evacuation
• Centercutting geometry allows direct plunge entry without a pilot hole
• Reduced shank at 0.1875 inches enables use in smaller collets with a larger cutting diameter
• Right-hand cut and right-hand flute — standard orientation for most CNC and manual setups

Compatibility

Designed as a replacement-style solid carbide square end mill for CNC machining centers and manual mills using standard ER or rigid collet toolholders sized for a 3/16 inch shank diameter.

Installation Notes

Installation is performed by machinists and CNC tooling technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the shank in a clean, properly sized collet or toolholder to the recommended torque per the toolholder manufacturer. Inspect the collet bore and shank for chips or debris before seating the tool, as contamination affects runout and tool life.