Promax 102-04816 Corner Radius End Mill 3/4 in 3 Flute Carbide

Product Description

The PROMAX 102-04816 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 3/4 inch cutting diameter, a 1-5/8 inch length of cut (LOC), and a corner radius range of 0.055 to 0.065 inches, providing a controlled edge break that reduces stress concentration and extends tool life in demanding cuts. The three-flute geometry and 40-degree high helix angle promote efficient chip evacuation and a smooth surface finish. A ZrN (zirconium nitride) coating improves wear resistance and reduces heat buildup during high-speed runs. This tool is installed by machinists and CNC operators working in job shops, tool rooms, and production environments.

This end mill suits roughing and finishing passes on ferrous and non-ferrous materials where a radiused corner profile is required. The centercutting design allows plunge entry, adding versatility in pocket milling and slotting operations. With a 3/4 inch shank diameter, it seats directly in standard ER or side-lock toolholders common on vertical machining centers and CNC mills. The Series 102 designation places it within a consistent PROMAX line of standard-length corner radius tools with coarse pitch spacing between flutes.

Key Features

• 3/4 inch cutting diameter with 1-5/8 inch length of cut for standard-reach applications
• Corner radius of 0.055 to 0.065 inches reduces corner chipping and part stress concentration
• 3-flute, coarse pitch design supports efficient chip clearance in slotting and pocketing
• 40-degree high helix angle improves surface finish and cutting action
• ZrN coating extends tool life and reduces friction at the cutting edge
• Centercutting geometry allows direct plunge entry without a pilot hole

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for CNC machining centers and manual mills accepting a 3/4 inch shank diameter toolholder.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before changing tooling. Seat the shank fully and evenly in the collet or toolholder to the recommended projection length before tightening. Inspect the cutting edges and coating for chips or damage before each use; do not run a visibly damaged end mill.