Harvey Tool 73045-C4 Square End Mill 0.045 in 4 Flute Carbide

Product Description

The HARVEY TOOL 73045-C4 is a solid carbide square end mill designed for precision milling in demanding machining applications. With a 0.0450-inch cutting diameter and a 0.135-inch length of cut, this tool is built for tight-tolerance work where rigidity and edge retention matter. The 4-flute geometry supports efficient chip evacuation while maintaining a strong core. An amorphous diamond coating reduces friction and extends tool life in abrasive materials. The 30-degree helix angle balances cutting forces, making this end mill suitable for a range of ferrous and non-ferrous workpiece materials. Machinists and tool-and-die professionals rely on this style of miniature end mill for detailed slot milling, profiling, and pocket work.

This end mill is suited for precision machining operations in job shops, tool rooms, and production environments. Its 0.125-inch shank diameter fits standard collets and end mill holders commonly found on CNC machining centers and manual mills. The right-hand cut and right-hand flute configuration is the standard orientation for conventional and climb milling on most setups. Centercutting capability allows the tool to plunge directly into the workpiece, adding versatility to profiling and pocketing operations. It is not configured for extended-reach applications.

Key Features

• 0.0450-inch cutting diameter for fine detail and tight-tolerance milling
• Solid carbide construction provides rigidity and wear resistance
• Amorphous diamond coating reduces friction and improves tool life in abrasive materials
• 4-flute design balances chip evacuation with core strength at this diameter
• 30-degree helix angle reduces cutting forces and promotes smooth finishes
• Centercutting geometry allows direct plunge entry into the workpiece

Compatibility

Designed as a standard miniature square end mill for use in 0.125-inch (1/8-inch) collets and end mill holders on CNC machining centers and manual knee mills. Length-of-cut range for this product group is 0.1000 to 0.2000 inches.

Installation Notes

Installation should be performed by a qualified machinist familiar with tool holder torque requirements and runout specifications. Ensure the machine spindle and collet are clean and free of chips before seating the shank. Verify tool projection and runout with a dial indicator before initiating a cut. At this diameter, even minor runout will accelerate tool wear and risk breakage, so proper setup is critical.