Promax 119-01426 Corner Radius End Mill 0.2188 in Carbide

Product Description

The PROMAX 119-01426 is a solid carbide corner radius end mill designed for combined roughing and finishing operations in a single pass. Built to Series 119 specifications, it features a 0.2188-inch mill diameter, three flutes with a right-hand cutting direction, and a 0.02-inch corner radius at the tip. The 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes. A ZrN (zirconium nitride) coating reduces friction and extends tool life in demanding materials. This is a centercutting, single-end tool with a stub length profile suited for rigid, close-tolerance work in production machining environments.

This end mill is used in CNC machining centers and manual mills for finishing and semi-finishing cuts on ferrous and non-ferrous materials where a corner radius profile is required. The stub length and straight cylindrical shank make it a practical choice for tight setups requiring minimal tool stick-out. It is commonly run by machinists, toolmakers, and production CNC operators working in job shops, aerospace component shops, and general precision manufacturing.

Key Features

• 0.02-inch corner radius end geometry reduces stress concentration and improves surface finish at part corners
• ZrN coating lowers friction and increases wear resistance for extended tool life
• 40-degree helix angle promotes aggressive chip evacuation and reduced cutting forces
• Micrograin solid carbide substrate delivers rigidity and edge retention
• Centercutting design allows plunge entry into workpiece material
• Right-hand flute direction and right-hand cutting - standard orientation for conventional CNC setups

Compatibility

Designed as an OEM-style replacement or direct-fit tool for CNC machining centers and manual mills accepting a 0.25-inch straight cylindrical shank end mill.

Installation Notes

Installation and tool changes must be performed with the spindle fully stopped and the machine in a safe, locked-out state. Seat the 0.25-inch straight shank securely in a collet or end mill holder, verifying runout with a dial indicator before operation. Follow the machine tool manufacturer and tooling manufacturer guidelines for speeds, feeds, and depth of cut for the specific workpiece material. Do not exceed the tool's designed flute length of 0.375 inches for axial depth of cut.