Accupro 12463639 Ball End Mill 0.04in 2 Flute Solid Carbide

Product Description

The ACCUPRO 12463639 is a miniature solid carbide ball end mill designed for precision milling in tight geometries and small-scale features. With a 0.0400-inch cutting diameter and a 0.1200-inch length of cut, this tool is built for profiling, contouring, and finishing passes where dimensional accuracy is critical. The micrograin carbide construction provides hardness and edge retention in demanding materials. A 30-degree helix angle promotes efficient chip evacuation and reduces cutting forces. This end mill is used by machinists and tool-and-die professionals working on CNC milling centers.

This miniature end mill is suited for small-feature milling operations in precision machining environments, including mold and die work, medical device components, aerospace parts, and prototype fabrication. The 0.1875-inch (1/8-inch) shank diameter fits standard ER collet systems and small-bore tool holders common on CNC machining centers and high-speed spindles. The single-end design is standard for tooling of this diameter class. No extended reach configuration is present, keeping the tool compact and rigid.

Key Features

• 0.0400-inch ball nose cutting diameter for fine-detail milling and small-radius profiling
• Micrograin solid carbide construction for hardness and wear resistance
• 30-degree right-hand spiral helix for smooth cutting action and chip evacuation
• Bright/uncoated finish suitable for non-ferrous metals, plastics, and graphite
• 1/8-inch shank diameter fits standard small-bore collet holders
• Single-end, right-hand cutting direction with no chipbreaker for clean edge geometry

Compatibility

Designed as an OEM-style miniature ball end mill for use in CNC machining centers and high-speed milling spindles accepting a 1/8-inch shank diameter via ER collet or equivalent tool-holding systems.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for tool runout, collet torque, and stick-out length. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Minimize overhang beyond what the application requires to reduce deflection at this diameter. Verify collet condition and cleanliness before seating the shank to maintain concentricity tolerances.