Harvey Tool 73056-C3 Square End Mill 0.056 in 4 Flute Altin

Product Description

The HARVEY TOOL 73056-C3 is a solid carbide square end mill designed for high-precision milling in ferrous and non-ferrous materials. At 0.056 inches in diameter with a 0.168-inch length of cut and a 30-degree helix angle, this tool is built for small-feature machining where dimensional accuracy is critical. The AlTiN coating extends tool life in abrasive and high-temperature cutting conditions. With four flutes and a right-hand cutting direction, it delivers clean chip evacuation and consistent finish quality. Machinists and tool-and-die professionals working on mold cavities, fine detail work, and tight-tolerance components will find this end mill suited to production and job-shop environments alike.

This end mill fits standard CNC machining centers and manual mills accepting a 1/8-inch shank. It is intended for small-diameter profiling, slotting, and pocketing operations where reach and rigidity are priorities. The 1.5-inch overall length provides a compact, rigid setup that minimizes deflection during light-to-moderate cut passes. It is centercutting, allowing plunge entry without a pre-drilled pilot hole. Applications include precision mold work, aerospace components, medical device machining, and general small-feature metalworking.

Key Features

• 0.056-inch diameter for fine-feature and small-cavity milling
• AlTiN coating for extended tool life in abrasive and elevated-temperature cuts
• Four-flute geometry supports higher feed rates and improved surface finish
• 30-degree helix angle balances cutting forces and chip flow
• Centercutting design allows direct plunge entry
• Solid carbide construction provides rigidity and wear resistance at small diameters

Compatibility

Designed for use in CNC machining centers and manual mills with a 1/8-inch collet or end mill holder accepting a straight shank. Suitable for milling ferrous and non-ferrous metals, hardened steels, and similar materials where AlTiN coating performance is applicable.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Secure the 1/8-inch shank in a properly sized collet or end mill holder, torqued to the machine manufacturer's specification. At 0.056 inches in diameter, this tool is highly susceptible to deflection and breakage if runout is not minimized — verify holder and spindle runout before cutting. Follow your machine tool manufacturer's guidelines for speeds, feeds, and depth of cut for this diameter and coating type.