Accupro 12184330 Ball End Mill 0.1406 in 3 Flute Carbide

Product Description

The ACCUPRO 12184330 is a single-end ball end mill designed for precision milling operations in ferrous and hardened materials. Ground from micrograin solid carbide, it carries an AlTiN (aluminum titanium nitride) coating that improves heat resistance and extends tool life in dry or high-speed cutting conditions. The cutter measures 0.1406 inches in diameter with a 0.5 inch length of cut and runs three right-hand spiral flutes at a 40-degree helix angle. That combination promotes chip evacuation and reduces cutting forces in small-diameter profiling, contouring, and 3D surfacing work. Machinists and toolmakers are the primary users of this tool.

This end mill suits CNC machining centers and manual mills where small-radius ball-end geometry is required. Typical applications include die and mold work, finishing passes on contoured surfaces, slotting in tight geometries, and profiling hardened steel or high-temperature alloys. The 3/16 inch shank diameter fits standard ER collets and end mill holders common on both vertical and horizontal machining setups. The 2 inch overall length keeps overhang manageable for small-feature work where rigidity matters.

Key Features

• Micrograin solid carbide substrate for rigidity and wear resistance in demanding materials
• AlTiN coating supports elevated cutting temperatures in ferrous and hardened workpieces
• Three-flute geometry balances chip clearance with tool strength at 0.1406 inches diameter
• 40-degree right-hand helix angle promotes smooth chip flow and reduces chatter
• Single-end ball profile suited for 3D contouring, die work, and radius-floor finishing
• 3/16 inch shank fits standard collet tooling without requiring specialty holders

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills accepting a 3/16 inch shank end mill holder or ER collet.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Seat the shank fully into the collet or holder to the recommended grip length before torquing the retention nut. Verify runout with a dial indicator after installation, as excessive runout at small diameters accelerates wear and can cause premature breakage.