Harvey Tool 73018-C3 Square End Mill 0.018 in 4 Flute Carbide

Product Description

The HARVEY TOOL 73018-C3 is a miniature solid carbide square end mill designed for precise milling operations in tight-tolerance applications. With a 0.018-inch cutting diameter and four flutes, this end mill delivers clean, accurate cuts at micro scales. The AlTiN coating improves heat resistance and extends tool life in ferrous and hardened materials. A 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces. Centercutting geometry allows plunge entry directly into the workpiece. This tool is built for machinists and toolmakers running small-diameter work on CNC mills and machining centers.

This end mill is suited for milling fine features, slots, pockets, and contours in hardened steels, stainless steel, titanium, and other demanding materials where a micro-diameter tool is required. The 0.125-inch shank diameter fits standard collets commonly found on CNC machining centers and high-speed spindles. The 1.5-inch overall length provides enough reach for most shallow-feature applications without sacrificing rigidity at this diameter. Right-hand cut and right-hand flute direction are standard for conventional CNC milling setups.

Key Features

• 0.018-inch cutting diameter for micro-scale milling operations
• Four-flute solid carbide construction for rigidity and wear resistance
• AlTiN coating for heat resistance and extended tool life in hard materials
• 30-degree helix angle promotes chip evacuation and reduces cutting forces
• Centercutting design allows direct plunge entry into the workpiece
• Right-hand cut and right-hand flute direction for standard CNC compatibility

Compatibility

Designed for use in CNC machining centers and high-speed spindles accepting a 0.125-inch shank diameter via ER collet or equivalent toolholding system.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator familiar with micro-diameter tooling. Secure the shank fully in a collet or toolholder to the manufacturer-specified grip length before running. At this diameter, excessive runout or improper speeds and feeds will result in immediate tool breakage. Always verify spindle runout and use appropriate chip load calculations for micro end mills before cutting.