Accupro 12276904 Ball End Mill 0.0110 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12276904 is a solid carbide ball end mill designed for high-precision milling in miniature applications. With a 0.0110-inch cutting diameter and a 0.0330-inch length of cut (LOC), this four-flute single-end tool is built for intricate detail work in tight tolerances. The micrograin carbide construction provides the hardness and edge retention needed for fine finishing and contouring passes. A 30-degree helix angle promotes smooth chip evacuation, and the bright/uncoated finish is suitable for use on a broad range of workpiece materials. Machinists and toolmakers working on micro-scale components rely on tools like this for accurate, repeatable results.

This end mill is well-suited for CNC milling operations requiring small-diameter tooling, including die and mold work, medical component machining, electronics part manufacturing, and precision prototype fabrication. The miniature series designation reflects its application in small-footprint machining centers and high-speed spindle setups where micro-geometry control is critical. The 1/8-inch shank diameter is compatible with standard collets used on benchtop and full-size CNC mills equipped for miniature tooling.

Key Features

• 0.0110-inch ball end cutting diameter with a mill diameter tolerance of +0.0000 / -0.0010 inches for tight dimensional control
• 4-flute spiral flute geometry for improved surface finish and chip load distribution
• Micrograin solid carbide construction delivers hardness and wear resistance at small diameters
• 30-degree right-hand helix angle supports efficient chip evacuation during high-speed passes
• Bright/uncoated finish — no coating buildup at the cutting edge, suited for non-ferrous and ferrous materials
• Single-end design with a 1/8-inch shank for standard miniature collet compatibility

Compatibility

Designed as an OEM-style miniature series ball end mill for use in CNC milling machines and machining centers equipped with collets accepting a 1/8-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and de-energized before changing tooling. Seat the 1/8-inch shank fully into the collet to the recommended engagement depth and torque the collet nut per the collet manufacturer specification. Inspect the cutting edge under magnification before use — at this diameter, edge chipping may not be visible to the naked eye.