Promax 129-34014 Corner Radius End Mill 5/8 in 4 Flute

Product Description

The PROMAX 129-34014 is a solid carbide corner radius end mill engineered for precision milling applications in ferrous and non-ferrous materials. It carries a 0.02 inch corner radius, a 5/8 inch cutting diameter, and a 1-1/4 inch length of cut. The micrograin carbide substrate delivers hardness and wear resistance suited to high-feed and high-speed operations. An AlTiN coating adds thermal stability and extends tool life at elevated cutting temperatures. This tool is a single-end, right-hand cut, right-hand flute design with a 40-degree helix angle. It is sized for use in CNC machining centers and manual milling machines by machinists and tool-and-die professionals.

The 129-34014 is suited for profiling, slotting, and finishing passes where a controlled edge radius is required to reduce stress concentrations in the workpiece. The regular-length geometry fits standard toolholders with a 5/8 inch bore. The 40-degree helix promotes smooth chip evacuation in steel, stainless, cast iron, and hardened alloy applications. Note that this end mill is not centercutting and is not designed for plunge milling. It belongs to the PROMAX Series 129 lineup.

Key Features

• 0.02 inch corner radius reduces edge chipping and workpiece stress at part corners
• AlTiN coating provides high-temperature oxidation resistance and extended tool life
• Micrograin solid carbide substrate for rigidity and dimensional stability
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Right-hand cut, right-hand spiral flute configuration for standard CNC and manual mill setups
• Single-end design with 4 flutes for a balance of chip clearance and cutting edge strength

Compatibility

Designed for use in standard 5/8 inch bore collet chucks, end mill holders, and hydraulic toolholders on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholder torque and runout specifications. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the shank to the full recommended engagement depth in the toolholder to minimize deflection and runout. Verify tool projection and confirm the corner radius geometry against the required part print before beginning the cut.