Hertel 30209800 Circuit Board Drill Bit No 40 Solid Carbide

Product Description

The HERTEL 30209800 is a solid carbide circuit board drill bit sized at No. 40 wire gauge (0.0980 inches, 2.49 mm) with a 130-degree split point and a fast spiral flute configuration. Solid carbide construction provides the rigidity and wear resistance required for precision drilling in printed circuit boards and other tight-tolerance electronic assemblies. The 35-degree helix angle and tapered web promote efficient chip evacuation and accurate hole placement. This bit is suited for CNC drill presses and hand-held precision drilling equipment used by electronics technicians, PCB fabricators, and machine shop professionals who need consistent, burr-free holes at small diameters.

This drill bit is designed for drilling through PCBs, thin metallic substrates, and a broad range of engineering materials including alloy steel, carbon steel, cast iron, high-temperature alloys, stainless steel, and titanium. The bright polished finish reduces friction and helps maintain cutting-edge integrity across repeated use. It is appropriate for both production drilling and prototype board work where hole diameter consistency directly affects connector and component fit.

Key Features

• Solid carbide construction for rigidity and extended tool life in hard and abrasive materials
• 130-degree drill point angle optimized for clean entry in circuit board and metallic substrates
• Fast spiral with 35-degree helix angle promotes rapid chip evacuation
• Tapered web design increases drill stability and reduces walking on entry
• Bright polished finish minimizes friction and heat buildup at the cutting edge
• Right-hand cutting direction compatible with standard drill press and CNC spindle rotation

Compatibility

Designed as an OEM-style replacement or direct-use bit for precision drilling applications requiring a No. 40 wire gauge diameter with a 1/8 inch shank, compatible with standard drill chucks and collets accepting 0.1250 inch shank diameters.

Installation Notes

This drill bit is installed by machinists, electronics technicians, and PCB fabricators using CNC drill presses or precision benchtop drilling equipment. Ensure the machine spindle and chuck are fully powered down before inserting or removing the bit. Secure the shank firmly in the collet or chuck to the full grip depth to prevent runout. Solid carbide bits are brittle and should not be used in handheld power drills where lateral loading can cause fracture.