Helical Solutions 86973 Ball End Mill 0.25in 3 Flute Carbide

Product Description

The HELICAL SOLUTIONS 86973 is a 3-flute solid carbide ball end mill designed for high-efficiency milling of aluminum alloys and non-ferrous materials. With a 0.25-inch diameter and a 2.0-inch length of cut, it handles both roughing and finishing passes in a single setup. The 40-degree helix angle promotes aggressive chip evacuation, while the Zplus PVD coating protects the cutting edge and reduces built-up edge when machining soft, gummy materials. A 0.125-inch nose radius defines the ball profile. This tool is intended for use by machinists and CNC operators working in job shop, production, or aerospace environments.

This end mill is suited for 3-axis and multi-axis CNC machining centers running aluminum, brass, copper, and other non-ferrous metals. The long-reach geometry, with a 2.0-inch reach length on a 4.0-inch overall length tool, allows access to deeper pockets and cavities without sacrificing rigidity. The straight cylindrical shank fits standard collet and end mill holders. It is cataloged in the Helical Solutions 3 Flute Ball 40 Degree Helix Variable Pitch series, which is engineered specifically for non-ferrous material removal.

Key Features

• 3-flute variable pitch geometry reduces harmonic vibration during cuts
• 40-degree high helix angle promotes chip evacuation in aluminum and non-ferrous materials
• Zplus PVD coating extends tool life and reduces friction against non-ferrous workpieces
• Ball nose profile with 0.125-inch nose radius enables 3D contouring and finishing passes
• Long-reach configuration with 2.0-inch LOC on a 4.0-inch overall length
• Suitable for both roughing and finishing operations in a single tool

Compatibility

Designed for machining aluminum alloys and non-ferrous metals. Part of the Helical Solutions 3 Flute Ball 40 Degree Helix Variable Pitch End Mill series for aluminum alloys and non-ferrous materials.

Installation Notes

Install in a clean, properly sized collet or end mill holder that matches the 0.25-inch straight cylindrical shank; shank diameter tolerance is h6. Confirm tool runout does not exceed 0.0003 inches TIR before engaging the workpiece. Secure the machine spindle and verify all guards are in place before tool change. Follow the machine tool manufacturer and facility safety procedures for CNC tooling installation and removal.