Hertel 30012500 Circuit Board Drill Bit 1/8 Inch

Product Description

The HERTEL 30012500 is a solid carbide circuit board drill bit designed for precise, clean-entry drilling in printed circuit board fabrication and related precision drilling applications. With a 1/8 inch (0.125 inch) diameter, a 118-degree drill point angle, and a fast spiral geometry, this bit delivers accurate hole placement with minimal material delamination. The tapered web configuration reinforces the cutting tip, and the bright polished finish reduces friction during cutting. It is suited for use by machinists, electronics technicians, and trade professionals who require repeatable, tight-tolerance results in small-diameter drilling operations.

This bit is built for drilling cast iron, non-ferrous metals, and steel, making it useful across PCB work, light fabrication, and precision machining tasks. The 5/8 inch flute length and 1-1/2 inch overall length make it compatible with standard drill press chucks and CNC spindles that accept 1/8 inch shank tooling. The right-hand cutting direction and 35-degree helix angle are optimized for chip evacuation in both ferrous and non-ferrous materials. This bit is sold individually.

Key Features

• Solid carbide construction for rigidity and extended tool life in precision drilling
• 118-degree drill point angle for accurate, low-thrust entry
• Fast spiral with 35-degree helix angle promotes efficient chip evacuation
• Tapered web configuration strengthens the cutting tip
• Bright polished finish reduces friction and heat buildup during operation
• Right-hand cutting direction compatible with standard drill presses and CNC spindles

Compatibility

Designed for use in standard drill presses, CNC drilling machines, and hand-held rotary tools that accept 1/8 inch shank drill bits. Suitable for drilling cast iron, non-ferrous metals, and steel.

Installation Notes

This bit should be installed and operated by qualified machinists or technicians familiar with precision drilling equipment. Ensure the drill press or CNC spindle is fully powered down and secured before changing tooling. Verify chuck or collet compatibility with the 1/8 inch shank diameter before use. Do not exceed the recommended feed rate or spindle speed for the workpiece material, as carbide tooling is brittle and susceptible to breakage under lateral loading.