Harvey Tool 73019 Square End Mill 0.019 in 4 Flute Carbide

Product Description

The HARVEY TOOL 73019 is a solid carbide square end mill designed for high-precision milling in demanding machining environments. With a 0.019-inch cutting diameter and a 0.057-inch length of cut, this tool is built for micro-scale work where dimensional accuracy and tool rigidity are critical. The 4-flute geometry provides a balance of chip evacuation and surface finish quality. A 30-degree helix angle promotes smooth cutting action and reduces chatter. Machinists and CNC operators install this tool in applications requiring tight tolerances and controlled stepdown passes on hard or abrasive materials.

This end mill is suited for use in vertical machining centers and CNC mills handling small-feature work in metals, composites, and engineering plastics. The bright/uncoated finish makes it a straightforward choice for applications where coating compatibility with the workpiece material is a consideration. With a 1/8-inch shank diameter and a 1.5-inch overall length, it fits standard ER collet systems and small-bore tool holders common in precision shops. Single-end configuration means the tool is replaced when the cutting end is worn rather than indexed.

Key Features

• 0.019-inch cutting diameter for micro-milling and fine-feature work
• Solid carbide construction for rigidity and wear resistance in hard materials
• 4-flute design balances chip removal with improved surface finish
• 30-degree helix angle reduces cutting forces and chatter
• Centercutting capable — supports plunge entry into the workpiece
• Right-hand cut and right-hand flute direction for standard CNC spindle rotation
• Bright/uncoated finish suitable for a wide range of base materials

Compatibility

Designed for use in CNC machining centers and manual mills equipped with 1/8-inch collets or compatible tool holders accepting a 0.125-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following standard tool-change procedures for the machine in use. Ensure the spindle is fully stopped and the machine is placed in a safe state before changing tooling. Seat the shank fully in the collet and torque the collet nut to the tool holder manufacturer specification. At this diameter, tool runout and collet cleanliness are especially critical — inspect the collet and bore for chips or wear before seating the tool.