Accupro 31539612 Ball End Mill 3/8 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 31539612 is a solid carbide ball end mill designed for precision milling in ferrous and hard materials. It features a 3/8 inch diameter ball end profile with a 4-flute geometry, delivering fine surface finishes and efficient material removal in profiling, slotting, and contour operations. The cutting edges carry an AlTiCrN coating, which provides excellent heat resistance and extends tool life in high-speed and dry cutting applications. With a 2.5 inch overall length and a 0.3200 inch length of cut, this end mill is suited for moderate-depth passes in CNC machining centers and manual mills operated by experienced machinists and tooling professionals.

This end mill is intended for use in metalworking applications including mold and die work, aerospace component machining, and general precision part manufacturing. The variable index geometry helps reduce chatter and vibration during cuts, improving finish quality and prolonging tool life. The single-end configuration and 3/8 inch shank diameter make it compatible with standard ER collet systems and end mill holders commonly found on vertical machining centers. It is appropriate for cutting hardened steels, stainless, titanium, and similar alloys where a high-performance coated carbide tool is required.

Key Features

• AlTiCrN coating for high heat resistance and extended tool life in hard and abrasive materials
• 4-flute solid carbide construction for rigidity and precise cutting performance
• Variable index geometry reduces chatter and improves surface finish
• 3/8 inch diameter ball end profile for contour milling and 3D profiling operations
• 0.3200 inch length of cut with 0.7500 inch neck length for controlled reach applications
• Single-end design with 3/8 inch shank for use in standard collet chucks and end mill holders

Compatibility

Designed for use with standard 3/8 inch collet systems and end mill holders on CNC vertical machining centers and manual knee mills. No specific model compatibility was provided in the product data.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Ensure the shank is clean and fully seated in the collet or holder before tightening to the holder manufacturer's specified torque range. Inspect the cutting edges for chips or wear before each use. Follow the tool manufacturer's recommended speeds and feeds for the specific workpiece material and coating type.