Hertel 30024200 Solid Carbide Circuit Board Drill Bit

Product Description

The HERTEL 30024200 is a solid carbide circuit board drill bit sized to Letter C (0.2420 inches / 6.15 mm) with a 118-degree drill point angle and a fast spiral flute configuration. The 35-degree helix angle and tapered web promote efficient chip evacuation in precision drilling applications. Flute length measures 0.75 inches (19.05 mm) and overall length is 1.5 inches (38.10 mm). The bright polished finish reduces friction during cutting. Shank diameter matches the bit diameter at 0.2420 inches (6.15 mm). This is a heavy-duty grade bit intended for trade and industrial use where tight tolerances are required, holding a diameter tolerance of -0.0005 to +0.0000 inches.

This drill bit is suited for right-hand cutting in circuit board fabrication, precision machining, and light industrial settings. Rated material applications include cast iron, non-ferrous metals, and plastics. The fast spiral geometry makes it particularly effective in materials where rapid chip removal is needed to prevent heat buildup and workpiece damage. It is typically used by machinists, electronics fabricators, and precision drilling technicians working in both production and repair environments.

Key Features

• Solid carbide construction for hardness and wear resistance in demanding materials
• Letter C size at 0.2420 inches (6.15 mm) with tight diameter tolerance of -0.0005 to +0.0000 inches
• 118-degree drill point angle with fast spiral and 35-degree helix for efficient chip evacuation
• Tapered web configuration for improved rigidity and point strength
• Bright polished coating reduces friction and aids chip flow
• Heavy-duty grade rated for cast iron, non-ferrous metals, and plastics

Compatibility

Designed as a precision circuit board and general-purpose drill bit compatible with standard right-hand drilling applications in cast iron, non-ferrous metals, and plastics where a Letter C (0.2420 inch) diameter is specified.

Installation Notes

Installation and use should be performed by qualified machinists or fabrication technicians familiar with carbide tooling. Ensure the drill press or CNC spindle is fully stopped and secured before changing bits. Carbide bits are brittle and should not be subjected to lateral loading or impact - use appropriate feed rates and spindle speeds for the workpiece material. Inspect the cutting edges before each use; discard any bit showing chipping or cracks.