Accupro 12183980 Ball End Mill 5/16 in 2 Flute Solid Carbide

Product Description

The ACCUPRO 12183980 is a solid carbide ball end mill designed for contour milling, profiling, and 3D surface machining on CNC milling machines. It carries a 0.3125-inch (5/16-inch) cutting diameter with a 0.75-inch length of cut, ground from micrograin carbide for edge stability and wear resistance. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. With a 2-flute, single-end configuration and right-hand cutting and flute direction, this tool is a standard choice for machinists working in steel, aluminum, and similar materials where a ball-nose profile is required.

This end mill is suited for job shops, tool rooms, and production machining environments running CNC vertical mills or machining centers. The 5/16-inch shank diameter matches the cutting diameter, allowing use in standard collet chucks or end mill holders without adapter sleeves. The uncoated micrograin carbide construction makes it a practical option for general-purpose applications where coated tooling is not required, and it is sold as a single-end tool in a quantity of one per package.

Key Features

• Micrograin solid carbide construction for improved edge retention and rigidity
• 40-degree helix angle promotes chip evacuation and reduces cutting forces
• Ball-nose profile suited for contour milling, profiling, and 3D surface work
• Right-hand cut, right-hand spiral, single-end configuration
• Uncoated finish for general-purpose machining applications
• Mill diameter tolerance of +0.000 to -0.002 inches for consistent fit and runout control

Compatibility

Designed as an OEM-style replacement or direct-use ball end mill for standard CNC milling setups accepting a 5/16-inch shank in collet chucks or end mill holders.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before inserting or removing tooling. Seat the shank fully into the collet or holder to the minimum clamping depth recommended by the toolholder manufacturer before tightening. Inspect the cutting edges for chips or damage before each use and replace the tool if edge integrity is compromised.