Hertel 30021870 Circuit Board Drill Bit 7/32 in Solid Carbide

Product Description

The HERTEL 30021870 is a solid carbide circuit board drill bit designed for precision drilling in electronics, light manufacturing, and production environments. Built with a 118-degree drill point angle and a fast spiral flute configuration, this bit delivers clean entry and efficient chip evacuation in demanding materials. The tapered web construction adds rigidity at the cutting edge. At 7/32 inch (0.2187 inch) in diameter with a matching 7/32 inch shank, the bit fits standard drill chucks and CNC spindles. Overall length is 1-1/2 inches with a 3/4 inch flute length. This bit is handled by machinists, PCB fabricators, and maintenance technicians working in high-precision drilling applications.

This drill bit is suited for drilling cast iron, non-ferrous metals, and plastics, making it applicable across circuit board fabrication, prototype work, and light production runs. The bright polished finish reduces friction and helps with chip flow in shallow-depth holes typical of board and panel drilling. Its compact overall length of 1-1/2 inches makes it well-suited for drill press and CNC setups where short tool projection is preferred.

Key Features

• Solid carbide construction for rigidity and wear resistance in precision drilling
• 118-degree drill point angle for clean, accurate entry in circuit board materials
• Fast spiral flute design promotes efficient chip evacuation
• Tapered web configuration adds cutting-edge strength
• Right-hand cutting direction with 35-degree helix angle
• Bright polished finish reduces friction during drilling

Compatibility

Designed for use with standard drill chucks and CNC spindle toolholders accepting a 7/32 inch shank. Suitable for drilling cast iron, non-ferrous metals, and plastics.

Installation Notes

Installation and use should be performed by qualified machinists or trained technicians familiar with drill press and CNC equipment operation. Ensure the spindle and workpiece are fully secured before engaging the cutting tool. Verify chuck or collet compatibility with the 7/32 inch shank diameter before mounting. Follow machine manufacturer guidelines for speed and feed settings appropriate to the workpiece material.