Hertel 30201560 Circuit Board Drill Bit 1/64 Inch Solid Carbide

Product Description

The HERTEL 30201560 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and electronic assembly applications. Built from solid carbide, this bit delivers the rigidity and wear resistance needed to hold tight tolerances in hard, abrasive materials. The cutting diameter is 1/64 inch (0.0156 inch), ground to a tolerance of -0.0003 to +0.0000 inch. The 130-degree drill point angle and 35-degree helix angle work together to produce clean entry holes with minimal breakout. The fast spiral flute design promotes efficient chip evacuation, reducing heat buildup during high-speed drilling operations. A bright polished finish further aids chip flow and reduces friction at the cutting edge.

This drill bit is suited for use in PCB drilling, precision machining, and electronic manufacturing environments where small-diameter hole accuracy is critical. Beyond circuit board work, the solid carbide construction supports drilling into alloy steel, carbon steel, cast iron, high-temperature alloy, stainless steel, and titanium. The 1/8 inch shank diameter is compatible with standard collet chucks and drill presses commonly found in machine shops, PCB drilling machines, and light manufacturing operations. The compact overall length of 1-1/2 inches makes it appropriate for short-reach applications requiring minimal runout and maximum rigidity.

Key Features

• Solid carbide construction for hardness, wear resistance, and dimensional stability
• 1/64 inch (0.0156 inch) cutting diameter with a tight tolerance of -0.0003 to +0.0000 inch
• 130-degree drill point angle for accurate hole entry and reduced thrust
• Fast spiral flute with 35-degree helix angle for efficient chip removal
• Tapered web configuration reinforces the cutting edge without sacrificing chip clearance
• Bright polished finish reduces friction and aids chip evacuation
• Right-hand cutting direction for standard spindle compatibility

Compatibility

Compatible with materials including alloy steel, carbon steel, cast iron, high-temperature alloy, stainless steel, and titanium. The 1/8 inch shank fits standard collet systems and drill chucks designed for that shank diameter.

Installation Notes

This bit is typically installed and operated by machinists, PCB fabrication technicians, or precision drilling equipment operators. Secure the shank firmly in a collet or drill chuck rated for the 1/8 inch diameter before operation. Solid carbide bits are brittle compared to high-speed steel; avoid side loading, interrupted cuts, or excessive feed pressure that can cause fracture. Inspect the cutting tip under magnification before each use, as chipping or wear at this diameter is not always visible to the naked eye.