Accupro 12276918 Ball End Mill 0.025 in 4 Flute Carbide

Product Description

The ACCUPRO 12276918 is a miniature ball end mill designed for precision milling of contoured surfaces, slots, and complex 3D profiles in tight-tolerance applications. Built from micrograin solid carbide, it carries a 0.025-inch cutting diameter with a 0.075-inch length of cut and a 4-flute spiral configuration at a 30-degree helix angle. The bright, uncoated finish makes it well-suited for non-ferrous metals, plastics, and other materials where coating adhesion is a concern. This is a single-end tool with right-hand cutting and right-hand flute direction, intended for use in CNC machining centers and precision manual mills by machinists and toolroom professionals.

This miniature end mill is used in applications requiring fine detail work, such as mold and die finishing, engraving, micro-slot milling, and contour work on small workpieces. The 0.025-inch diameter makes it appropriate for intricate cuts where larger tooling cannot reach. Its 1/8-inch shank diameter accommodates standard collet systems commonly found in both vertical machining centers and high-speed spindles. The Miniature series designation indicates this tool is built for small-scale, high-precision work in both production and prototype environments.

Key Features

• 0.025-inch ball nose cutting diameter for fine detail and contour milling
• 4-flute spiral design at 30-degree helix for smooth chip evacuation and surface finish
• Micrograin solid carbide construction for rigidity and wear resistance in precision applications
• Bright, uncoated finish suitable for non-ferrous metals and plastics
• Single-end, right-hand cut with 1/8-inch shank for standard collet compatibility
• 1.5-inch overall length with 0.075-inch length of cut for reach in confined areas

Compatibility

Designed as an OEM-style miniature ball end mill compatible with standard 1/8-inch collet systems used in CNC machining centers, high-speed spindles, and precision toolroom mills.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the spindle fully de-energized and locked out per facility lockout/tagout procedures. Ensure the collet and collet nut are clean and free of debris before seating the 1/8-inch shank. At this diameter, tool runout must be minimized; verify runout with a dial indicator before cutting. Follow appropriate feeds and speeds for the workpiece material to avoid tool breakage on this miniature tool.