Harvey Tool 980220-C3 Corner Radius End Mill 1/8 Inch 4 Flute

Product Description

The HARVEY TOOL 980220-C3 is a solid carbide corner radius end mill designed for precision milling in demanding metalworking applications. It features a 1/8 inch cutting diameter, a 0.50 mm (0.0200 inch) corner radius, and a 4-flute spiral geometry with a 30-degree helix angle. The AlTiN PVD coating extends tool life when cutting ferrous and hard materials. At 1-1/2 inches overall length with a 3/16 inch length of cut, this is a stub-length configuration suited for rigidity in tight-clearance cuts. Machinists and tool-and-die professionals specify this tool when corner geometry consistency and surface finish both matter.

This end mill is built for use on CNC machining centers and manual mills where small-diameter, close-tolerance work is required. Its centercutting design allows plunge entry, and right-hand flute direction supports standard spindle operation. Primary workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, and composites. The stub-length body reduces deflection when milling narrow slots, pockets, or contoured profiles in production and toolroom environments. It is sold individually and fits standard straight-shank toolholders with a 1/8 inch bore.

Key Features

• 0.50 mm corner radius with tolerance of +0.0010 to -0.0010 inch for consistent edge geometry
• AlTiN PVD coating improves heat resistance and wear life on ferrous and hard alloy workpieces
• 4-flute spiral configuration supports both roughing and finishing in a single tool
• Centercutting design enables direct plunge entry without a pre-drilled pilot hole
• Stub-length body (3/16 inch LOC) maximizes rigidity and minimizes deflection at small diameters
• Right-hand cutting direction, straight-cylindrical shank, no chipbreaker for smooth chip evacuation

Compatibility

Designed for use with standard straight-bore toolholders accepting a 1/8 inch shank diameter. Suitable for CNC and manual milling setups targeting steel, stainless steel, cast iron, non-ferrous metals, and composite workpiece materials.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the toolholder bore is clean and free of debris before seating the shank, and verify runout with a dial indicator before beginning a cut. Spindle speed and feed rate should be set per the manufacturer cutting data for the specific workpiece material and coating type. Do not exceed the rated length of cut when programming axial depth of pass.