Harvey Tool CSG0700-C6 Micro Drill Bit 0.0700 in Carbide

Product Description

The HARVEY TOOL CSG0700-C6 is a solid carbide micro drill bit engineered for precision drilling in hardened steel applications. It carries a No. 50 wire gauge designation with a decimal diameter of 0.0700 inches and features a 140-degree drill point angle optimized for entering hard, abrasive workpiece materials without tip deflection. The AlTiN Nano coating provides thermal resistance and extended tool life at elevated cutting temperatures. With an overall length of 50.00 mm and a flute length of 0.3350 inches, this bit is designed for controlled, accurate hole placement in tight tolerances. It cuts right-hand and is ground to an h6 diameter tolerance for consistent fit and runout performance.

This micro drill bit belongs to the Harvey Tool Miniature High Performance Drills series for hardened steels. It is suited for use in CNC machining centers, high-speed spindles, and precision drill presses where small-diameter, close-tolerance holes are required in hardened steel workpieces. Typical applications include die and mold work, aerospace components, and precision mechanical assemblies where workpiece hardness demands a coated carbide tool rather than a standard HSS bit. The 3.00 mm shank diameter allows use in standard collet systems common to CNC tooling setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in hardened steel
• AlTiN Nano coating provides high-temperature resistance and reduced friction at the cutting edge
• 140-degree drill point angle reduces thrust force and minimizes tip walking on hard surfaces
• h6 diameter tolerance ensures consistent fit and minimal runout in precision collets
• Spiral flute geometry promotes chip evacuation in deep, small-diameter holes
• Right-hand cutting direction compatible with standard CNC and manual spindle rotation

Compatibility

Designed for use in CNC machining centers and precision drilling applications targeting hardened steel workpieces. The 3.00 mm shank diameter is compatible with standard ER-style and precision collet systems. Consult Harvey Tool series documentation for specific machine speed and feed recommendations for the Miniature High Performance Drills hardened steel series.

Installation Notes

Installation and tool changes should be performed with the machine spindle fully stopped and in a safe, locked-out state. Secure the 3.00 mm shank in a clean, burr-free collet and verify runout before cutting. Micro-diameter carbide tooling is brittle and susceptible to breakage from side loading, improper feed rates, or unsupported workpieces. Follow the machine tool manufacturer and Harvey Tool published speed and feed parameters for hardened steel when setting up this drill.