Harvey Tool 966108 Ball End Mill 1/8 in 3 Flute Carbide

Product Description

The HARVEY TOOL 966108 is a solid carbide ball end mill designed for precision milling in ferrous and non-ferrous materials. It features a 1/8 inch diameter, a 3-flute right-hand spiral configuration, and a 30-degree helix angle that balances cutting efficiency with surface finish quality. The stub flute geometry paired with a long-reach design — 1.25 inches of reach length — allows access to deep features without sacrificing rigidity. At 2.5 inches overall length with a 3/16 inch length of cut, this tool is built for tight-tolerance work in steel, stainless steel, cast iron, and non-ferrous metals. Machinists and toolroom technicians use it for both roughing and finishing passes in a single setup.

This end mill is suited for CNC machining centers and manual mills where small-diameter tooling is required. The long-reach, stub-flute configuration is commonly applied in mold and die work, medical component machining, and aerospace part production where deep cavities or restricted clearance require extended reach without sacrificing cutting control. The bright, uncoated finish makes it appropriate for applications where coating interaction with the workpiece or cutting fluid is a concern. It is a single-end tool with a straight cylindrical 1/8 inch shank compatible with standard collet chucks and end mill holders.

Key Features

• Solid carbide construction for rigidity and wear resistance in steel, stainless steel, cast iron, and non-ferrous metals
• 3-flute, right-hand spiral design with 30-degree helix angle for balanced cutting and chip evacuation
• Long-reach geometry with 1.25 inches of reach length and stub flute for deep-feature access
• Ball nose profile supports 3D contouring, profiling, and blending operations
• Bright, uncoated finish compatible with a wide range of cutting fluids and workpiece materials
• Single-end configuration with a straight cylindrical shank for standard collet and end mill holder mounting

Compatibility

Designed as an OEM-series miniature ball end mill in the HARVEY TOOL Miniature End Mills - Ball - Long Reach, Stub Flute series. Compatible with standard 1/8 inch ID collet chucks and end mill holders on CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the tool changer or spindle is locked before inserting or removing the tool. Seat the shank to the minimum recommended insertion depth in the collet or holder to maximize rigidity and minimize runout. Verify runout with a dial indicator before beginning a cut, especially given the small diameter, as excessive runout will accelerate tool wear and reduce dimensional accuracy.