Harvey Tool 852216-C6 Corner Radius End Mill 1/4 in 5 Flute

Product Description

The HARVEY TOOL 852216-C6 is a solid carbide corner radius end mill designed for high-performance milling in hardened steels and other tough workpiece materials. The tool features a 1/4 inch diameter, a 0.01 inch corner radius, and five flutes with a variable helix geometry that reduces harmonic vibration during cuts. An AlTiN (aluminum titanium nitride) PVD coating provides thermal resistance and extended tool life in abrasive and high-heat applications. This end mill is single-end, right-hand cutting, and center-cutting, making it suitable for both roughing and finishing operations in a single tool. Licensed machinists and CNC operators working with hardened materials will find this tool well matched to demanding production environments.

This end mill is engineered for use in steels up to 55 Rc, stainless steel, cast iron, and hard alloys. Its close pitch, variable helix flute design supports stable material removal across a range of cutting conditions. The 3/4 inch length of cut and 2-1/2 inch overall length suit it for standard-reach milling operations in machining centers and CNC mills. A straight-cylindrical 1/4 inch shank is compatible with high-precision toolholders. This tool is part of the Harvey Tool End Mills for Hardened Steels - Corner Radius series and is intended for professional machine shop and production environments where dimensional accuracy and surface finish are critical.

Key Features

• Variable helix flute geometry reduces chatter and vibration in hard material cuts
• AlTiN PVD coating provides thermal and wear resistance for hardened steel applications
• Center-cutting capability allows plunge entry without a pre-drilled pilot hole
• 0.01 inch corner radius protects the cutting edge and improves surface finish at workpiece corners
• Right-hand flute direction and right-hand cutting for standard CNC mill setup
• Suitable for both roughing and finishing in a single tool pass

Compatibility

Designed for use in steels up to 55 Rc, stainless steel, cast iron, and hard alloys. Recommended for use with high-precision toolholders. Part of the Harvey Tool End Mills for Hardened Steels - Corner Radius series.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the shank fully within a high-precision toolholder and verify runout before operation. Power down and lock out the spindle before changing or inspecting tooling. Follow the machine tool manufacturer and cutting tool manufacturer guidelines for speeds, feeds, and depth of cut when working with hardened materials.