Promax 102-01216 Corner Radius End Mill 3/16in 3 Flute Carbide

Product Description

The PROMAX 102-01216 is a solid carbide corner radius end mill designed for precision milling operations where a controlled corner radius is required at the cutting edge. With a 3/16-inch diameter and a 0.03 to 0.035-inch corner radius, this tool reduces stress concentrations at part corners and extends tool life in hardened or abrasive workpieces. The ZrN (zirconium nitride) coating adds surface hardness and heat resistance. It is a centercutting design with three flutes and a high-helix geometry, making it suitable for both slotting and profiling cuts in steel, stainless, and non-ferrous alloys.

This end mill fits standard CNC machining centers, manual knee mills, and high-speed spindle applications where close-tolerance corner radii are required. The 3/16-inch shank diameter matches the cutting diameter for direct collet or end mill holder mounting. With a 5/8-inch length of cut and 2-inch overall length, it is sized for general-purpose work in mold and die, aerospace, and precision job-shop environments. Right-hand cut and right-hand flute direction follow standard conventions for most vertical and horizontal milling setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding materials
• ZrN coating improves surface hardness and thermal resistance at the cutting edge
• 0.03 to 0.035-inch corner radius reduces stress risers and improves part surface finish
• Three-flute, high-helix design promotes chip evacuation and smooth cutting action
• Centercutting geometry allows plunge entry as well as standard peripheral milling
• Coarse pitch classification suits aggressive material removal in shorter-run applications

Compatibility

Designed as a standard shank corner radius end mill compatible with collet chucks, shrink-fit holders, and end mill holders accepting a 3/16-inch shank diameter on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following machine tool manufacturer guidelines. Ensure the spindle is fully stopped and the machine is in a safe state before mounting or removing the tool. Use a clean, undamaged collet or holder and torque the retention mechanism per the holder manufacturer specification. Inspect the cutting edges for chipping before each use and confirm runout is within acceptable limits for the application.