Promax 106-03212 Corner Radius End Mill 1/2 in 3 Flute

Product Description

The PROMAX 106-03212 is a solid carbide corner radius end mill designed for precision milling in metals and hard materials. It features a 1/2 inch diameter, a 0.02 inch corner radius, and a TiCN (titanium carbonitride) coating that increases surface hardness and wear resistance compared to uncoated carbide. The 35-degree helix angle promotes smooth chip evacuation and reduces cutting forces. With three flutes and a right-hand cutting direction, this tool is built for efficient stock removal and fine finishing passes. Machinists and tool-and-die professionals use this end mill in CNC machining centers and manual mills where corner blend geometry is required.

This end mill suits applications in job shops, tool rooms, and production machining environments. The corner radius geometry reduces stress concentration at the cutting edge, extending tool life in ferrous and non-ferrous materials. The 1-1/4 inch length of cut provides adequate reach for common pocket and profile milling operations without sacrificing rigidity. Its centercutting design allows plunge entry, giving the operator flexibility to start cuts without a pre-drilled hole. The 1/2 inch shank fits standard ER collet chucks, end mill holders, and Weldon-style tool holders.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• TiCN coating for improved wear resistance and reduced friction at the cutting edge
• 0.02 inch corner radius reduces chipping and blends inside corners smoothly
• 35-degree helix angle promotes efficient chip evacuation
• Centercutting design allows direct plunge entry into workpiece material
• Right-hand flute spiral with right-hand cutting direction for standard CNC and manual mill setups

Compatibility

Designed for use with standard 1/2 inch end mill holders, ER collet chucks, and Weldon-style tool holders on CNC machining centers and manual vertical mills. Part of the PROMAX Series 106 corner radius end mill line.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Ensure the shank is clean and the holder is torqued to the tool holder manufacturer's specifications before running. Verify runout with a dial indicator after mounting to avoid premature edge wear. Always consult the machine tool manufacturer's guidelines for maximum spindle speeds and feed rates appropriate to the workpiece material.