Accupro 12276906 Ball End Mill 0.0130 in 4 Flute Carbide

Product Description

The ACCUPRO 12276906 is a miniature solid carbide ball end mill designed for precision milling operations requiring a very small cutting diameter. At 0.0130 inches in diameter with a 0.0390-inch length of cut, this tool is built for fine detail work, micro-slot milling, and intricate contouring in hardened and difficult-to-machine materials. The micrograin carbide substrate provides the rigidity and edge retention necessary at this scale. A 30-degree helix angle promotes efficient chip evacuation in shallow, high-precision cuts. The bright uncoated finish makes it suitable for applications where coating buildup or heat transfer concerns would otherwise apply. Machinists and toolroom operators running CNC machining centers or manual mills will find this tool appropriate for miniature work.

This end mill is used in applications that require extreme precision at micro-scale dimensions. Typical environments include aerospace component machining, medical device manufacturing, mold and die work, and electronics fixture fabrication. The single-end configuration and 1/8-inch shank diameter make it compatible with standard collet systems found on high-speed spindles and micro-machining setups. The 1.5-inch overall length keeps the tool compact and minimizes deflection during light, precise passes.

Key Features

• 0.0130-inch ball nose cutting diameter for micro-scale milling and contouring
• Solid micrograin carbide construction for edge retention and rigidity at small diameters
• 4-flute design balances chip load and surface finish in fine detail passes
• 30-degree right-hand spiral helix for efficient chip evacuation
• Bright uncoated finish suits dry cutting and heat-sensitive applications
• 1/8-inch shank diameter fits standard miniature collet systems

Compatibility

Designed as a miniature single-end ball end mill with a 1/8-inch shank, compatible with standard collet systems on CNC machining centers and high-speed spindles configured for small-diameter tooling.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and the control in a safe state. Secure the 1/8-inch shank firmly in a matching collet or tool holder, verifying runout before cutting. At this diameter, even minor runout will significantly affect tool life and surface finish. Follow machine manufacturer guidelines and applicable shop safety practices when handling micro-diameter carbide tooling, as the cutting edge is extremely fragile.