Accupro 314312 Ball End Mill 1/2 in 2 Flute Solid Carbide Zrn

Product Description

The ACCUPRO 314312 is a solid carbide ball end mill designed for precision milling of contoured surfaces, 3D profiles, and complex geometries in ferrous and non-ferrous materials. It features a 1/2 inch cutting diameter, a 2-flute right-hand spiral configuration, and a 45-degree helix angle that promotes efficient chip evacuation and smooth cutting action. The ZrN (zirconium nitride) coating improves surface hardness and heat resistance, extending tool life in demanding cutting conditions. Built from micrograin carbide, this end mill maintains edge sharpness and dimensional accuracy across extended production runs. It is a single-end tool intended for CNC machining center use.

This end mill suits applications requiring extended reach into deep pockets, slots, or contoured cavities where standard-length tools cannot access. The 2-3/8 inch neck and reach length allow the cutting edge to engage workpiece features well below the spindle nose. Typical applications include die and mold work, aerospace component profiling, and general precision machining of aluminum, steel, stainless, and hardened materials. The 5/8 inch length of cut provides adequate engagement for most shallow-to-medium depth passes in these scenarios.

Key Features

• 1/2 inch ball nose cutting diameter with mill diameter tolerance of +0.000/-0.002 inches for close-tolerance profiling
• ZrN coating for improved heat resistance and extended tool life in ferrous and non-ferrous materials
• 45-degree helix angle promotes efficient chip evacuation and reduces cutting forces
• Extended reach design with 2-3/8 inch neck length for deep-cavity and difficult-access milling
• Micrograin solid carbide construction maintains edge integrity under high-speed cutting conditions
• Right-hand cut and right-hand flute direction compatible with standard CNC spindle rotation

Compatibility

Designed as a direct-fit replacement for 1/2 inch shank ball end mill positions on CNC machining centers accepting straight-shank toolholders. Shank diameter tolerance is +0.0001/-0.0004 inches for secure holder engagement.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the control is in an e-stop or tool-change state before inserting or removing the tool from the holder. Clean the shank and toolholder bore before assembly to prevent runout from contamination. Confirm clamping torque on the collet or set-screw holder meets the toolholder manufacturer's specification before initiating a cut.