Harvey Tool BAF0465-C8 Micro Drill Bit No. 56 Carbide

Product Description

The HARVEY TOOL BAF0465-C8 is a solid carbide micro drill bit sized to wire gauge No. 56, equal to 0.0465 inches in diameter. It carries a Titanium Diboride (TiB2) coating and a 130-degree drill point angle suited for clean entry in soft, gummy, or ductile non-ferrous materials. The spiral flute geometry promotes efficient chip evacuation, reducing heat buildup and the risk of workpiece smearing. Overall length is 50 millimeters, with a flute length of 8 millimeters and a 3-millimeter shank diameter. Diameter tolerance is held to h6. This drill is intended for installation by machinists, toolroom technicians, and CNC operators working in precision manufacturing environments.

This drill bit is engineered for use in aluminum alloy workpiece applications, consistent with its listing under the Miniature High Performance Drills series for Aluminum Alloys. It is well suited to high-speed CNC drilling operations where tight hole-location tolerances and repeatable entry geometry are required. Typical applications include small-bore feature drilling in aluminum plate, aluminum extrusions, and aluminum castings. The right-hand cut direction matches standard CNC spindle rotation, making it a direct fit for most machining centers and drill presses without special fixturing.

Key Features

• Solid carbide construction for rigidity and wear resistance in micro-diameter drilling
• Titanium Diboride (TiB2) coating reduces built-up edge on aluminum alloy workpieces
• 130-degree drill point angle optimized for non-ferrous metals including aluminum
• Spiral flute design promotes chip evacuation and reduces heat in deep-entry cuts
• h6 diameter tolerance ensures consistent fit and precise hole sizing
• Right-hand cut direction compatible with standard CNC and manual drill spindles

Compatibility

Engineered as an OEM-style precision micro drill for aluminum alloy workpiece materials, as specified in the Miniature High Performance Drills - Aluminum Alloys series. No additional specific model or machine compatibility data was provided in the source information.

Installation Notes

Installation of micro drill bits should be performed by qualified machinists or CNC technicians. Always power down and lock out the spindle before inserting or removing tooling from the chuck or collet. Use a collet sized to accept a 3-millimeter shank for secure grip and minimal runout. Micro-diameter carbide drills are brittle - avoid side-loading, interrupted cuts, or off-center entry angles that can cause sudden breakage.