Hertel 30009800 Circuit Board Drill Bit No 40 Solid Carbide

Product Description

The HERTEL 30009800 is a solid carbide circuit board drill bit sized to wire gauge No. 40, with a decimal diameter of 0.098 inches (2.49 mm). It features a 118-degree drill point, a fast spiral flute design with a 35-degree helix angle, and a tapered web configuration. The right-hand cutting geometry and bright polished finish make it well suited for precision drilling in tight-tolerance applications. With a flute length of 0.625 inches (15.88 mm) and an overall length of 1.5 inches (38.10 mm), this bit is built for controlled, accurate penetration in materials where bit deflection or breakage is a concern.

This drill bit is designed for use in circuit board fabrication and similar precision drilling operations. It is appropriate for cutting cast iron, non-ferrous metals, and steel. The solid carbide construction supports use in CNC drilling equipment and high-speed spindle applications where rigidity and runout control are critical. It is used by machinists, PCB fabricators, and precision metalworking shops.

Key Features

• No. 40 wire size, 0.098 inches (2.49 mm) diameter for precision small-hole drilling
• 118-degree drill point angle for general-purpose entry across multiple materials
• Fast spiral flute with 35-degree helix angle promotes efficient chip evacuation
• Solid carbide construction for rigidity and extended tool life
• Tapered web for improved drill point stability and reduced walking
• Bright polished finish, right-hand cutting direction

Compatibility

Designed for use in circuit board drilling and precision small-hole applications involving cast iron, non-ferrous metals, and steel.

Installation Notes

This bit is installed and operated by machinists or CNC technicians using appropriate spindle tooling. Ensure the drill chuck or collet is properly sized and secured before operation. Use speeds and feeds appropriate for solid carbide tooling in the target material to avoid bit breakage. Inspect the cutting edge for wear or chipping before each use.