Harvey Tool ARY0468-C6 Micro Drill Bit 3/64 in Carbide

Product Description

The HARVEY TOOL ARY0468-C6 is a solid carbide micro drill bit engineered for precision drilling in hardened steel applications. It measures 3/64 inches (0.0469 inches) in diameter with a 140-degree drill point angle optimized for penetrating tough, hardened workpiece materials with minimal deflection. The AlTiN Nano coating provides thermal resistance and extended tool life under high-speed cutting conditions. Right-hand cutting direction and spiral fluting promote consistent chip evacuation. This bit is part of the Miniature High Performance Drills - Hardened Steels series, designed for machinists and tooling professionals working in precision machining environments where tight tolerances are required.

This micro drill bit is suited for use in CNC machining centers, drill presses, and precision manual drilling setups where hardened steel is the primary workpiece material. The h6 diameter tolerance ensures close-fit accuracy for applications demanding precise hole sizing. Its compact 50.00 mm overall length and 3.00 mm shank diameter make it compatible with standard collet and chuck systems used in small-diameter tooling setups. Typical applications include mold and die work, tooling fabrication, and precision component manufacturing where hardened steel stock is common.

Key Features

• Solid carbide construction for rigidity and wear resistance in hardened steel
• AlTiN Nano coating for elevated thermal resistance and extended tool life
• 140-degree drill point angle reduces thrust and walking on hard materials
• h6 diameter tolerance for consistent, close-fit hole accuracy
• Right-hand spiral fluting for efficient chip evacuation
• 3.00 mm shank diameter compatible with standard small-diameter collet systems

Compatibility

Designed for drilling hardened steel as both the primary and secondary workpiece material. Part of the Harvey Tool Miniature High Performance Drills - Hardened Steels series.

Installation Notes

Installation and use of this micro drill bit should be performed by qualified machinists familiar with small-diameter carbide tooling. Secure the shank firmly in a precision collet or chuck rated for the 3.00 mm shank before operation. Carbide tooling is brittle — avoid side loading, impact, or flexing during setup or drilling. Verify spindle runout is within acceptable limits before use, as excessive runout will cause premature breakage at this diameter.