Hertel 30203800 Circuit Board Drill Bit No 62 Solid Carbide

Product Description

The HERTEL 30203800 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and tight-tolerance machining applications. Built to No. 62 wire gauge size, it measures 0.0380 inches (0.97 mm) in diameter with a 1/8-inch shank diameter and a 1-1/2-inch overall length. The 130-degree drill point angle and fast spiral geometry promote clean entry and efficient chip evacuation in small-diameter, high-precision drilling. A tapered web configuration adds rigidity at the cutting edge, reducing deflection in fine-diameter work. The bright polished finish minimizes friction and helps maintain dimensional accuracy across production runs. This bit is sized and constructed for use by machinists, electronics fabricators, and precision drilling technicians.

This bit is suited for drilling small-diameter holes in circuit boards and other precision components. The fast spiral and 35-degree helix angle make it effective across a range of workpiece materials including alloy steel, carbon steel, cast iron, stainless steel, high-temperature alloy, and titanium. It fits standard 1/8-inch shank collets commonly used in CNC drilling machines, PCB drill presses, and precision benchtop drill setups. The 3/8-inch flute length accommodates typical board stack thicknesses and thin-section metalwork. Right-hand cutting direction is standard for conventional spindle rotation.

Key Features

• No. 62 wire size — 0.0380 inches (0.97 mm) diameter for fine-tolerance hole placement
• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• 130-degree drill point angle optimized for clean penetration in circuit board and thin-section applications
• Fast spiral with 35-degree helix angle for efficient chip removal in small-diameter drilling
• Tapered web configuration reduces deflection and improves cutting stability
• Bright polished finish reduces friction and extends tool life in repetitive production use

Compatibility

Designed as an OEM-style replacement or stock drill bit for use in standard 1/8-inch shank collet systems on CNC PCB drill presses and precision drilling equipment.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or electronics fabrication technicians familiar with small-diameter carbide tooling. Secure the 1/8-inch shank fully in the collet before operation and verify runout is within tolerance, as carbide bits at this diameter are brittle and sensitive to lateral loading. Power down and de-energize the spindle completely before changing bits. Avoid using this bit in hand-held drilling applications where axis control cannot be maintained.