Accupro 12179303 Ball End Mill 5/8 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12179303 is a single-end ball end mill designed for precision milling operations in ferrous and hardened materials. Built from micrograin solid carbide, it features a 5/8 inch cutting diameter, a 2 inch length of cut, and a 40-degree helix angle that promotes efficient chip evacuation and smooth surface finishes. The tool carries an nACRo coating, which improves heat resistance and extends tool life in demanding high-speed machining environments. With 4 right-hand spiral flutes and a right-hand cutting direction, it delivers consistent material removal on CNC machining centers and manual mills alike. Installation and operation are handled by machinists and CNC programmers working in job shops, toolrooms, and production environments.

This end mill is suited for profiling, contouring, slotting, and finishing passes in molds, dies, and complex 3D part geometries. It performs well in alloy steels, stainless steels, hardened steels, and similar materials where the nACRo coating provides a thermal and chemical barrier. The 5/8 inch shank diameter fits standard ER collet chucks, side-lock holders, and shrink-fit toolholders in that bore size. The 6 inch overall length gives clearance for deeper cavity work while maintaining rigidity appropriate for the diameter.

Key Features

• Micrograin solid carbide construction for hardness and wear resistance
• nACRo coating for extended tool life in high-temperature cutting conditions
• 40-degree helix angle promotes efficient chip flow and reduces cutting forces
• 4 right-hand spiral flutes for balanced material removal and surface finish quality
• Single-end design with 5/8 inch shank for direct compatibility with standard toolholders
• Mill diameter tolerance of plus 0.000 / minus 0.002 inches for consistent fit and finish

Compatibility

Designed for use in CNC machining centers and manual mills accepting a 5/8 inch shank diameter toolholder, including ER collet, side-lock, and shrink-fit systems.

Installation Notes

Installation is performed by qualified machinists following shop-standard toolholding procedures. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the end mill. Verify collet or holder bore size matches the 5/8 inch shank before tightening. Follow the toolholder manufacturer torque and runout specifications to avoid premature tool wear or breakage.