Harvey Tool 989762-C8 Ball End Mill 0.062in 3 Flute Carbide

Product Description

The HARVEY TOOL 989762-C8 is a solid carbide ball end mill designed for precision milling in non-ferrous metals, primarily aluminum alloys. It features a 0.062-inch mill diameter, a 0.186-inch reach length, and a variable helix geometry at 42 degrees that reduces chatter and improves chip evacuation at high feed rates. The TiB2 (titanium diboride) PVD coating provides lubricity and heat resistance suited to aluminum, preventing built-up edge. With three flutes and a right-hand cutting direction, this single-end tool is built for finishing and light roughing passes in tight-tolerance work. Machinists and toolroom operators working on CNC machining centers install this end mill for contoured and profiled surfaces in aluminum and similar non-ferrous materials.

This end mill is suited for CNC milling operations on aluminum alloys, copper, brass, and other non-ferrous metals where a ball-nose profile is required for 3D contouring, radius profiling, and cavity work. The 1/8-inch straight-cylindrical shank fits standard collet systems on vertical and horizontal machining centers. Its standard-length classification and 1.5-inch overall length make it appropriate for most shallow-to-moderate-depth features where extended reach tooling is not required. The variable helix design is part of the HARVEY TOOL series specifically engineered for aluminum alloy material removal.

Key Features

• Variable helix at 42 degrees reduces harmonic vibration and chatter in aluminum milling
• TiB2 PVD coating provides low friction and resists built-up edge on non-ferrous materials
• Solid carbide construction delivers rigidity and dimensional stability in tight-tolerance applications
• Three-flute helical design balances chip clearance and cutting surface contact
• Ball-nose geometry enables 3D contouring, radius profiling, and blended surface work
• Right-hand cut and right-hand flute direction for use in standard CNC spindle configurations

Compatibility

Designed for use in CNC machining centers with standard 1/8-inch collet or end mill holder systems. Optimized for non-ferrous metals, with primary application in aluminum alloys as designated by material code N in the HARVEY TOOL Variable Helix End Mills for Aluminum Alloys - Ball series.

Installation Notes

Installation is performed by qualified machinists or CNC toolroom technicians. Ensure the machine spindle is fully stopped and the control is in E-stop or tool-change mode before inserting or removing the tool. Use a properly sized collet or shrink-fit holder rated for the 1/8-inch shank diameter and verify runout before running production. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and depth of cut.