Hertel 30010940 Circuit Board Drill Bit 7/64 in Carbide

Product Description

The HERTEL 30010940 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and light industrial applications. With a 7/64 inch (0.1094 inch) diameter and a 118-degree point angle, it delivers accurate, clean entry holes in tight-tolerance work. The fast spiral flute geometry promotes efficient chip evacuation, reducing heat buildup in the cut zone. A bright, uncoated finish maintains dimensional integrity throughout the tool life. Overall length is 1.5 inches with a 0.625-inch flute length. Licensed machinists, PCB fabricators, and precision manufacturing technicians are the primary installers.

This bit is suited for drilling circuit boards and light ferrous and non-ferrous materials including cast iron, steel, and non-ferrous metals. Its compact 1.5-inch overall length makes it well-suited for use in drill presses, CNC drilling machines, and precision benchtop setups where short projection and rigidity are required. The 7/64 inch shank diameter matches the cutting diameter, allowing straightforward collet or chuck mounting without step-down adapters.

Key Features

• Solid carbide construction for superior wear resistance and rigidity in precision drilling
• 118-degree point angle for accurate self-centering entry on flat and curved surfaces
• Fast spiral flute with 35-degree helix angle for effective chip removal
• Tapered web configuration for improved strength and cutting stability
• Right-hand cutting direction, compatible with standard drill press and CNC spindle rotation
• Bright uncoated finish preserves precise diameter tolerance of -0.0005 to 0.0000 inch

Compatibility

Designed for use with standard collet chucks and drill press chucks accepting a 7/64 inch (0.1094 inch) shank. Suitable for drilling cast iron, non-ferrous metals, and steel as noted in manufacturer material application data.

Installation Notes

Installation and operation should be performed by qualified machinists or technicians familiar with precision drilling equipment. Always secure the workpiece firmly before drilling and verify spindle speed is appropriate for carbide tooling in the target material. Carbide bits are brittle — avoid side loading, impact, or flexing during use. Power down and de-energize all equipment before changing bits or adjusting toolholders.