Hertel 30003120 Circuit Board Drill Bit 1/32 in Solid Carbide

Product Description

The HERTEL 30003120 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and related small-hole applications. The bit measures 1/32 inch (0.0312 inch) in diameter with a matching 1/32 inch shank diameter and features a 118-degree drill point angle ground for clean entry in hard and non-ferrous materials. A fast spiral with a 35-degree helix angle promotes efficient chip evacuation, reducing heat buildup in the cut zone. Bright polished finish minimizes friction and aids chip flow. Licensed trades and electronics manufacturing technicians rely on this size for tight-tolerance through-hole work.

This drill bit is suited for use on cast iron, non-ferrous metals, and steel in both production and service environments. The tapered web configuration provides added rigidity at this small diameter, helping maintain straightness through the cut. Right-hand cutting direction is standard for use in conventional drill presses, CNC drilling machines, and precision hand tools common in circuit board and light machining applications. The 1/2 inch flute length accommodates typical board stack depths, while the 1-1/2 inch overall length fits standard collet and chuck setups.

Key Features

• Solid carbide construction for rigidity and wear resistance at small diameters
• 118-degree drill point angle for clean, accurate entry on circuit board and metal substrates
• Fast spiral with 35-degree helix angle for efficient chip evacuation
• Tapered web configuration adds column strength at 1/32 inch diameter
• Bright polished finish reduces friction and aids chip flow
• Right-hand cut, compatible with standard drill press and CNC spindle rotation

Compatibility

Designed as a standard 1/32 inch circuit board drill bit suitable for use in drill presses, CNC drilling machines, and precision collet chucks accepting a 1/32 inch (0.0312 inch) shank. Compatible material applications include cast iron, non-ferrous metals, and steel as noted by the manufacturer.

Installation Notes

This bit is typically installed by machinists, electronics fabrication technicians, or qualified maintenance personnel using a collet or Jacobs-style chuck rated for small-shank tooling. Secure the shank fully in the chuck before operation and verify runout is within acceptable limits before drilling. At this diameter, feed rate and spindle speed must be set conservatively to prevent bit deflection or breakage. Always power down and lock out the machine spindle before changing or inspecting tooling.