Accupro 314440 Corner Radius End Mill 1/8 in 3 Flute Zrn

Product Description

The ACCUPRO 314440 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 1/8 inch cutting diameter with a 0.010 inch corner radius, a 1/4 inch length of cut, and a 1-1/2 inch overall length. The three-flute, right-hand spiral design paired with a 37-degree helix angle promotes efficient chip evacuation and smooth cutting action. A ZrN (zirconium nitride) coating provides enhanced wear resistance and surface lubricity, extending tool life in demanding cuts. This end mill is centercutting, allowing it to plunge directly into workpiece material.

This end mill is suited for finish milling, profiling, and light slotting operations on ferrous and non-ferrous metals, hardened steels, and similar materials. The corner radius geometry reduces stress concentration at the cutting edge, improving tool longevity compared to a sharp-corner end mill. It is a regular-length tool, appropriate for general-purpose CNC machining centers and manual mills where a 1/8 inch shank is used. Machinists, tool-and-die makers, and precision shop technicians are the typical end users for this class of end mill.

Key Features

• 1/8 inch cutting diameter with 0.010 inch corner radius for reduced edge chipping
• ZrN coating for improved wear resistance and reduced built-up edge
• 3-flute, right-hand spiral design with 37-degree helix for efficient chip flow
• Centercutting geometry allows direct plunge entry into material
• Solid micrograin carbide construction for rigidity and edge retention
• Single-end tool with 1/8 inch shank diameter matching cutting diameter

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 1/8 inch shank diameter.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Secure the shank in a collet or end mill holder to the appropriate torque specification per machine manufacturer guidelines before operation. Verify spindle speed and feed rate settings are appropriate for the workpiece material and tool diameter before engaging the cut. Inspect the cutting edges for chipping or wear before each use and replace the tool if damage is observed.