Accupro 32414328 Ball End Mill 5/16 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 32414328 is a solid carbide ball end mill designed for precision milling in ferrous and non-ferrous metals, hardened steels, and similar materials. It features a 5/16-inch (0.3125 inches) mill diameter and a 2-1/2-inch overall length. The 4-flute, single-end configuration with a variable index geometry helps reduce chatter and improve surface finish in demanding cuts. An AlTiCrN coating provides elevated heat and wear resistance, extending tool life in high-speed and dry machining environments. This end mill is suited for use in CNC machining centers and manual milling setups requiring tight tolerances.

This end mill is appropriate for finish and semi-finish profiling, contouring, and slotting operations in both shop and production environments. The ball-nose profile generates radius features, 3D contours, and blended surfaces directly off the spindle. With a 0.2660-inch length of cut and 0.3750-inch neck length, it is well suited for work in moderate-depth cavities where clearance around the neck is a factor. Machinists and tool-and-die professionals handling mold work, die cavities, or aerospace profiles will find this geometry applicable to their requirements.

Key Features

• Solid carbide construction for rigidity and long tool life
• AlTiCrN coating for heat resistance and reduced built-up edge
• 4-flute design increases feed rate potential versus 2-flute alternatives
• Variable index flute spacing reduces harmonic vibration during cutting
• Single-end ball-nose profile for 3D contouring and radius generation
• 5/16-inch shank diameter matches standard ER and end-mill-holder collet sizes

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide ball end mill for CNC machining centers and manual mills accepting a 5/16-inch shank diameter.

Installation Notes

This tool is installed by a machinist or CNC operator using an appropriate collet chuck or end mill holder rated for a 5/16-inch shank. Ensure the holder and spindle taper are clean and free of chips before seating the tool. Set tool length offset in the CNC control before running the first operation. Follow machine manufacturer guidelines for maximum RPM and feed rates based on workpiece material and depth of cut.