Hertel 30003500 Circuit Board Drill Bit Size 65 Solid Carbide

Product Description

The HERTEL 30003500 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and related fine-tolerance applications. Sized at wire gauge number 65 with a decimal diameter of 0.0350 inches (0.89 mm), the bit features a 118-degree point angle and a fast spiral with a 35-degree helix angle for efficient chip evacuation. The bright polished finish reduces friction and heat buildup during operation. Overall length is 1.5 inches, with a flute length of 0.625 inches. A tapered web configuration adds rigidity while maintaining the tight tolerances required for small-diameter drilling.

This bit is suited for production and repair drilling in circuit board manufacturing, electronics assembly shops, and precision machining environments. It performs in cast iron, non-ferrous metals, and steel, making it applicable beyond PCB work to any application demanding a tight-tolerance, small-diameter carbide drill. Right-hand cut direction is standard for conventional drill press and CNC spindle use.

Key Features

• Wire gauge size 65 with 0.0350-inch decimal diameter and 0.89 mm metric equivalent
• 118-degree drill point angle for clean entry in hard and non-ferrous materials
• Solid carbide construction for hardness, wear resistance, and dimensional stability
• Fast spiral with 35-degree helix angle promotes chip clearance in deep or stacked material drilling
• Bright polished finish reduces friction and extends tool life in fine-tolerance operations
• Diameter tolerance of -0.0005 to +0.0000 inches ensures precision hole sizing

Compatibility

Designed for use in standard drill press chucks, CNC drilling machines, and precision spindles accepting a 0.0350-inch shank diameter, and suited for drilling cast iron, non-ferrous metals, and steel.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or electronics manufacturing technicians familiar with small-diameter carbide tooling. Ensure the spindle and chuck are rated for the shank diameter before securing the bit. Carbide bits are brittle and susceptible to breakage from lateral loading or excessive feed pressure — use appropriate feed rates and RPM settings for the material and bit diameter. Inspect the cutting edges before each use and replace any bit showing chipping or wear.