Promax 119-01226 Corner Radius End Mill 3/16 in Carbide

Product Description

The PROMAX 119-01226 is a solid carbide corner radius end mill designed for demanding roughing and finishing operations in a single tool. Built to Series 119 standards, it features a 3/16-inch diameter, three flutes, and a 0.01-inch corner radius that reduces stress concentrations at the cutting edge. The ZrN (zirconium nitride) coating improves wear resistance and surface finish quality. With a 40-degree helix angle and right-hand cutting direction, this stub-length tool delivers aggressive chip evacuation while maintaining tight tolerances. It weighs 0.03 pounds and is suited for machinists and toolroom technicians running CNC mills or manual milling equipment.

This end mill is appropriate for use in precision machining environments where combined roughing and finishing passes are required on a single setup. The corner radius geometry makes it well suited for mold and die work, profiling, and contouring operations where sharp internal corners must be avoided. Its stub-length configuration provides added rigidity in shallow-to-moderate depth cuts. The micrograin carbide substrate supports higher spindle speeds and feeds compared to standard carbide grades, making it a practical choice for ferrous and non-ferrous workpiece materials.

Key Features

• Solid micrograin carbide construction for extended tool life and edge retention
• ZrN coating reduces friction and improves wear resistance at the cutting edge
• 0.01-inch corner radius reduces edge chipping and stress at the tool tip
• 40-degree helix angle promotes efficient chip evacuation during aggressive passes
• Center-cutting design allows plunge entry into the workpiece
• Right-hand flute direction and straight-cylindrical shank for standard collet or end mill holder mounting

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills accepting a 3/16-inch straight-cylindrical shank. Shank diameter tolerance is -0.0001 to -0.0004 inches; mill diameter tolerance is +0.000000 to -0.002000 inches.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholder torque and runout verification procedures. Ensure the spindle is fully stopped and machine is powered off before changing tooling. Secure the shank to the full recommended engagement depth in the collet or end mill holder to prevent pullout under load. Verify runout with a dial indicator before beginning a production run.