Accupro 12183982 Ball End Mill 0.3125 in 2 Flute Carbide

Product Description

The ACCUPRO 12183982 is a solid carbide ball end mill designed for precision milling operations in metal and composite materials. With a 0.3125-inch mill diameter and a 0.75-inch length of cut, this single-end tool is built for contouring, slotting, and profiling in demanding machining environments. The 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces, while the AlTiN (aluminum titanium nitride) coating extends tool life at elevated temperatures. Micrograin carbide construction provides rigidity and wear resistance in difficult-to-machine alloys. Machinists and CNC programmers in production and job-shop settings rely on this geometry for 3D surface work and finish passes.

This ball end mill is suited for use on CNC machining centers and manual mills where tight-tolerance curved surface geometry is required. The right-hand cutting and right-hand spiral flute configuration is the standard setup for conventional and climb milling on ferrous and non-ferrous metals. The 0.3125-inch shank diameter matches common collet and end mill holder sizes, making it a straightforward drop-in for most tooling setups. It is a single-end tool, so the full 2.5-inch overall length is available for reach in moderate-depth applications without extended-reach toolholding.

Key Features

• 0.3125-inch ball nose diameter for precise radius contouring and 3D profiling
• AlTiN coating provides heat and oxidation resistance for extended tool life in hard materials
• 40-degree helix angle promotes chip evacuation and smooth cutting action
• Micrograin solid carbide construction delivers rigidity and edge retention
• Right-hand cut, right-hand spiral flute — standard geometry for most CNC milling applications
• Single-end design with 2.5-inch overall length for direct toolholder mounting

Compatibility

Designed as an OEM-style solid carbide ball end mill compatible with standard 5/16-inch bore collets, end mill holders, and shrink-fit toolholders used on CNC and manual milling machines.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Always power down and lock out the spindle before changing tooling. Seat the shank fully into the collet or holder to the recommended grip length and torque the retention mechanism to the toolholder manufacturer's specification. Inspect the cutting edges and coating for chips or wear before each use, and verify runout with a dial indicator before engaging the workpiece.