Harvey Tool 72040 Square End Mill 0.04 in 2 Flute Carbide

Product Description

The HARVEY TOOL 72040 is a solid carbide square end mill designed for precision milling in tight geometries and fine-detail work. With a cutting diameter of 0.04 inches and a 0.12-inch length of cut, this tool targets small-feature machining where accuracy and rigidity are critical. The 1/8-inch shank diameter and 1-1/2-inch overall length keep the tool compact and well-suited for CNC machining centers and manual mills requiring high-precision micro-milling capability. A 30-degree helix angle promotes smooth chip evacuation while reducing cutting forces. Uncoated solid carbide construction provides the hardness and wear resistance needed for consistent performance in ferrous and non-ferrous materials.

This end mill is used in applications requiring fine detail passes, slot milling, and contour work in small components. It is commonly found in tool and die, mold making, aerospace part production, and precision instrument manufacturing environments. The centercutting geometry allows for direct plunge entry, adding versatility in multi-axis CNC setups. Right-hand cut and right-hand flute orientation are standard for conventional CNC spindle configurations. The 2-flute design suits applications where chip clearance is a priority over feed rate, making it effective in softer metals, plastics, and composites at small diameters.

Key Features

• 0.04-inch cutting diameter for micro and fine-detail milling operations
• Solid carbide construction for rigidity and wear resistance at small tool diameters
• Centercutting design allows direct plunge milling without pre-drilling
• 30-degree helix angle promotes chip evacuation and reduces cutting forces
• 2-flute configuration maximizes chip clearance in small-diameter cuts
• Uncoated finish suitable for a wide range of ferrous and non-ferrous workpiece materials

Compatibility

Designed as an OEM-style solid carbide square end mill compatible with CNC machining centers and manual mills accepting a 1/8-inch round shank in standard collet or chuck systems.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and locked out per shop safety procedures. Seat the 1/8-inch shank fully and evenly in a precision collet or end mill holder to minimize runout. Verify tool projection and length of cut clearance before initiating any program cycle. At this diameter, tool breakage risk is elevated if feeds, speeds, or depth of cut exceed the recommended parameters for the workpiece material.