Harvey Tool 73035 Square End Mill 0.9mm 4-flute Carbide

Product Description

The HARVEY TOOL 73035 is a solid carbide square end mill designed for precision milling in tight-tolerance applications. With a 0.9 mm (0.0350 inch) cutting diameter and a 0.105-inch length of cut, this tool is built for small-feature work where accuracy and rigidity are critical. The four-flute geometry improves surface finish and chip evacuation compared to two-flute designs. A 30-degree helix angle balances cutting efficiency with lateral cutting force. The bright, uncoated finish makes it well-suited for non-ferrous metals, plastics, and other materials where coating adhesion or thermal buildup is a concern. Machinists and tool-and-die professionals are the primary users of this tool.

This end mill fits applications requiring fine detail work, micro-feature milling, or slotting in small-scale components. The 1/8-inch shank diameter makes it compatible with standard collets and tool holders found on CNC machining centers and manual knee mills. The 1.5-inch overall length keeps deflection low, which is important when working at sub-millimeter diameters. Right-hand cutting and right-hand flute direction follow conventional milling standards. It is a single-end tool, meaning the cutting geometry is on one end only.

Key Features

• 0.9 mm (0.0350 inch) cutting diameter for fine detail and micro-feature work
• Four-flute design for improved surface finish and chip evacuation
• 30-degree helix angle balances cutting efficiency and lateral load
• Solid carbide construction for rigidity and wear resistance at small diameters
• Bright/uncoated finish suitable for non-ferrous metals and plastics
• Centercutting capable, allowing plunge entry into workpiece material

Compatibility

Designed as an OEM-style replacement or direct-fit tool for CNC machining centers and manual mills equipped with 1/8-inch collets or tool holders accepting a 0.125-inch shank diameter.

Installation Notes

This tool is installed by machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is in a safe, powered-down state before changing tooling. Use a properly sized collet or end mill holder to secure the 0.125-inch shank; avoid over-tightening, which can distort the shank at this diameter. At sub-millimeter cutting diameters, runout control is critical — verify holder and spindle runout before first use.