Harvey Tool BGN0550-C6 Micro Drill Bit No. 54 0.0550 in

Product Description

The HARVEY TOOL BGN0550-C6 is a solid carbide micro drill bit engineered for high-performance drilling in hardened steel applications. It carries a No. 54 wire gauge designation with a decimal diameter of 0.0550 inches and features a 140-degree drill point angle optimized for penetrating hard, abrasive workpiece materials. The bit is finished with an AlTiN Nano coating that provides thermal resistance and extended tool life under demanding cutting conditions. The right-hand cutting direction and spiral flute geometry promote efficient chip evacuation in deep, tight-tolerance micro holes. This drill is part of the Miniature High Performance Drills - Hardened Steels series and is suited for precision machining environments where tool diameter consistency is critical.

This micro drill bit is designed for use in hardened steel workpieces, making it applicable in tool and die, mold making, and precision component manufacturing operations. Its 3.00 mm shank diameter is compatible with standard collet and chuck systems used on CNC machining centers and precision drill presses. The h6 diameter tolerance on the drill ensures tight, repeatable sizing, which is essential in applications where hole location and diameter accuracy directly affect part function. Machinists and toolroom technicians working with hardened materials will find this drill appropriate for small-diameter hole production where standard HSS tooling fails to hold up.

Key Features

• Solid carbide construction for rigidity and wear resistance in hardened steel
• AlTiN Nano coating increases heat resistance and extends tool life in abrasive materials
• 140-degree drill point angle suited for entry into hard, tough workpiece surfaces
• h6 diameter tolerance ensures consistent, tight hole sizing
• Spiral flute geometry promotes chip evacuation in micro-diameter drilling
• 3.00 mm shank diameter fits standard collet and precision chuck systems

Compatibility

Designed for drilling hardened steel workpieces as part of the Miniature High Performance Drills - Hardened Steels series. Compatible with collet and chuck systems accepting a 3.00 mm shank diameter on CNC machining centers and precision drill presses.

Installation Notes

This tool should be installed and operated by qualified machinists or toolroom technicians familiar with carbide micro tooling. Ensure the spindle and workholding are free of runout before use, as micro-diameter carbide drills are sensitive to lateral loading and can fracture under misalignment. Use appropriate cutting fluid or coolant recommended for hardened steel operations. Follow machine manufacturer guidelines for spindle speed and feed rate selection when working with carbide tooling at this diameter range.