Accupro 12184384 Ball End Mill 0.4219in 3 Flute Altin Carbide

Product Description

The ACCUPRO 12184384 is a solid carbide ball end mill designed for precision milling operations in metal cutting and machining applications. It measures 0.4219 inches in diameter with a 1-inch length of cut and a 2.75-inch overall length. The three-flute, right-hand spiral configuration paired with a 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. An AlTiN coating provides heat resistance and extended tool life when machining hardened steels, stainless steels, and other demanding materials. This end mill is a single-end tool made from micrograin solid carbide for consistent edge integrity under high-speed conditions.

This ball end mill is suited for contouring, profiling, and 3D surface milling on CNC machining centers and manual mills. The ball-nose geometry makes it appropriate for finishing passes on curved and complex surfaces in mold and die work, aerospace components, and general precision machining. The 7/16-inch shank diameter fits standard ER collet chucks and end mill holders commonly found in professional machine shops.

Key Features

• 0.4219-inch (27/64 inch) ball nose diameter for precision contouring
• AlTiN coating for high-heat resistance and extended tool life
• 3-flute, right-hand spiral design for efficient chip removal
• 40-degree helix angle promotes smooth cutting and reduced chatter
• Micrograin solid carbide construction for edge stability and wear resistance
• Single-end configuration with 7/16-inch shank for standard toolholding systems

Compatibility

Designed for use in CNC machining centers and manual milling machines equipped with 7/16-inch compatible collet chucks or end mill holders. Suitable for cutting hardened steels, stainless steels, and similar ferrous materials where AlTiN coatings provide thermal protection.

Installation Notes

Installation is performed by a machinist or CNC operator. Secure the 7/16-inch shank in a properly sized collet or end mill holder and torque to the toolholder manufacturer specification. Ensure the spindle and machine are fully stopped and locked out before changing tooling. Inspect the cutting edges and coating for damage before mounting; do not use a chipped or cracked carbide tool.