Promax US362316 Corner Radius End Mill 3/4 in 3 Flute

Product Description

The PROMAX US362316 is a solid carbide corner radius end mill designed for high-performance milling of non-ferrous metals. It features a 3/4-inch diameter, a 1-5/8-inch length of cut (1.625 inches), and a 1/8-inch (0.125-inch) corner radius that reduces stress concentration at the cutting edge. The ZrN (zirconium nitride) PVD coating improves surface hardness and lubricity, making it well suited for aluminum, copper, brass, and similar materials. With three flutes and a variable helix geometry, this tool is built for roughing operations where chip evacuation and vibration control matter. It is a single-end, center-cutting tool with a straight cylindrical shank and an overall length of 4 inches.

This end mill is intended for use in CNC machining centers and manual milling machines working primarily with non-ferrous metals. It is commonly applied in job shops, aerospace component machining, and general fabrication environments where aluminum and similar alloys are machined at high feed rates. The coarse pitch and variable helix reduce chatter during aggressive roughing passes. It mounts directly into a standard toolholder compatible with a 3/4-inch straight shank. This tool is appropriate for machinists and CNC programmers specifying tooling for roughing applications in non-ferrous material.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance in non-ferrous machining
• ZrN PVD coating improves lubricity and tool life when cutting aluminum and copper alloys
• Variable helix geometry reduces harmonic vibration during roughing passes
• 1/8-inch corner radius extends edge life and reduces workpiece stress at corners
• Center-cutting design allows plunge entry without a pre-drilled hole
• Right-hand flute direction with coarse pitch optimized for aggressive material removal

Compatibility

Designed for use with standard toolholders accepting a 3/4-inch straight cylindrical shank. Intended for milling non-ferrous metals per the Series US362 material application specification.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill from the toolholder. Verify shank seating depth and toolholder runout with a dial indicator before commencing a cut, as shank diameter tolerances on this tool run from -0.0001 to -0.0040 inches. Do not use this end mill on ferrous metals or hardened steels, as it is rated for non-ferrous applications only.