Promax 119-01016 Corner Radius End Mill 0.1563 in Solid Carbide

Product Description

The PROMAX 119-01016 is a solid carbide corner radius end mill designed for roughing and finishing operations in a single tool. It features a 0.1563-inch diameter with three flutes and a 0.01-inch corner radius that reduces stress concentrations at the cutting edge, extending tool life in demanding applications. The 40-degree helix angle promotes aggressive chip evacuation while maintaining smooth surface finishes. A ZrN (zirconium nitride) coating adds hardness and heat resistance, making this end mill well-suited for high-speed passes in ferrous and non-ferrous materials. Machinists and CNC operators in job shops and production environments are the primary users.

This end mill is used in CNC milling centers for profiling, slotting, and contouring cuts where a corner radius is required to reduce part stress or match drawing callouts. With a 0.5-inch length of cut and a 2-inch overall length on a 3/16-inch shank, it fits standard ER collet chucks and end mill holders on vertical and horizontal machining centers. Its single-end, right-hand cut configuration is the standard for general-purpose milling work.

Key Features

• 0.1563-inch cutting diameter with 0.01-inch corner radius for reduced edge chipping and stress relief
• Three flutes for a balance of chip clearance and surface finish quality
• 40-degree helix angle promotes efficient chip evacuation in roughing and finishing passes
• ZrN coating improves surface hardness and thermal resistance for extended tool life
• Solid carbide construction provides rigidity and wear resistance over high-speed tool steel alternatives
• Single-end, right-hand cut design matches standard CNC milling spindle rotation

Compatibility

Designed for use in standard ER collet chucks or end mill holders accepting a 3/16-inch shank diameter, compatible with vertical and horizontal CNC milling centers running right-hand spindle rotation.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the machine powered down and the spindle locked before tooling changes. Seat the shank fully in the collet or holder to the recommended gauge line before torquing the retention nut. Verify runout with a dial indicator before beginning cuts, as excessive runout accelerates wear on small-diameter carbide tools. Follow the machine manufacturer and tooling supplier guidelines for speeds and feeds specific to the workpiece material.