Harvey Tool 41616 Corner Radius End Mill 1/4 in 3 Flute

Product Description

The HARVEY TOOL 41616 is a solid carbide corner radius end mill designed for precision milling in ferrous and non-ferrous materials. It features a 1/4 inch cutting diameter with a 0.01 inch corner radius, three right-hand helical flutes, and a 30-degree helix angle. The stub flute geometry paired with an extended reach of 1.25 inches makes this tool suited for deep-pocket and long-reach milling applications where rigidity and tight corner tolerances are critical. The uncoated bright finish is appropriate for a wide range of materials and allows for easy wear inspection during use. A licensed machinist or CNC mill operator is the typical end user.

This end mill is built for both roughing and finishing operations across steel, stainless steel, cast iron, aluminum, composites, and wood. The extended-reach, stub-flute configuration is a common choice in precision machining environments where access to recessed features or deep floors is required. The single-end design with a straight cylindrical shank mounts directly to standard toolholders. The 4 inch overall length and 3/8 inch length of cut suit setups where reach beyond a standard end mill is needed without sacrificing cutting stability.

Key Features

• 0.01 inch corner radius with a tolerance of plus/minus 0.001 inch for consistent edge blending
• Solid carbide construction for rigidity and wear resistance in hard materials
• Extended reach of 1.25 inches accommodates deep-pocket and recessed-floor applications
• Three-flute, right-hand helical geometry supports both roughing and finishing passes
• Uncoated bright finish compatible with a wide material range including aluminum and composites
• Center-cutting design allows direct plunge entry without pre-drilling

Compatibility

Compatible with standard toolholders accepting a 1/4 inch straight cylindrical shank. Intended for use in CNC machining centers and manual mills where extended-reach, stub-flute corner radius tooling is specified. Suitable for steel, stainless steel, cast iron, aluminum, non-ferrous metals, composites, and wood.

Installation Notes

Installation is performed by a machinist or CNC setup technician using a compatible toolholder rated for the 1/4 inch shank diameter. Ensure the machine spindle is fully stopped and the tool is clamped to the manufacturer-recommended projection length before beginning a cut. Verify runout at the cutting edge after installation, as extended-reach tools are more sensitive to toolholder concentricity than standard-length end mills. Consult machine tool and toolholder documentation for appropriate clamping torque and setup procedures.