Accupro 314556 Corner Radius End Mill 1/4 in Solid Carbide

Product Description

The ACCUPRO 314556 is a solid carbide corner radius end mill designed for precision milling of ferrous and non-ferrous materials. Built from micrograin solid carbide and coated with ZrN (zirconium nitride), it delivers extended tool life and wear resistance in demanding cutting environments. The 0.015 inch corner radius reduces stress concentrations at the cutting edge, helping to produce clean floor-to-wall transitions. At 1/4 inch in diameter with a 3/8 inch length of cut and 2-1/2 inch overall length, this is a compact, single-end tool suited to tight-tolerance finish work. It is installed and operated by machinists and tool-and-die professionals using CNC mills and manual knee mills.

This end mill is suited for use in job shops, production machining operations, and tool rooms where consistent corner geometry is critical. The 3-flute, right-hand spiral configuration with a 37-degree helix angle promotes efficient chip evacuation and smooth surface finishes. The centercutting design allows plunge entry, giving the operator flexibility in toolpath programming. The 1/4 inch shank diameter fits standard ER collets and end mill holders found in most vertical machining centers.

Key Features

• Micrograin solid carbide construction for rigidity and edge retention
• ZrN coating improves wear resistance and reduces built-up edge
• 0.015 inch corner radius for clean floor-to-wall transitions
• 3-flute, right-hand spiral with 37-degree helix for efficient chip evacuation
• Centercutting geometry permits direct plunge entry
• Single-end design with regular length classification for standard reach applications

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for standard 1/4 inch end mill holders and ER collet systems used in CNC vertical machining centers and manual mills.

Installation Notes

This end mill is installed by machinists using appropriate collet chucks or end mill holders rated for 1/4 inch shanks. Ensure the machine spindle is fully stopped and locked out before changing tooling. Torque retention screws or collet nuts to the tool holder manufacturer's specifications. Verify runout with a dial indicator after installation to protect edge geometry and part tolerances.