Hertel 30002100 Circuit Board Drill Bit 0.53mm Wire 75

Product Description

The HERTEL 30002100 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and other fine-tolerance applications. Built to wire size 75, it measures 0.53 mm (0.0210 decimal inch) in diameter with a matching 0.53 mm shank diameter. The 118-degree drill point and fast spiral geometry with a 35-degree helix angle promote efficient chip evacuation and clean entry in thin, layered materials. The bright polished finish reduces friction at the cutting edge. This bit is intended for use by machinists, PCB fabrication technicians, and precision metalworking professionals who require consistent performance at sub-millimeter diameters.

This drill bit is suited for drilling cast iron, non-ferrous metals, and steel in applications that demand tight dimensional control. Its heavy-duty grade solid carbide construction handles the rigidity requirements of high-speed, small-diameter drilling. Typical use cases include circuit board production, instrument component machining, and precision fixture work where standard high-speed steel bits would deflect or wear prematurely. The right-hand cutting direction and tapered web configuration make it compatible with standard CNC drilling spindles and bench-top precision drill presses used in electronics manufacturing and toolroom environments.

Key Features

• Solid carbide construction provides rigidity and wear resistance at 0.53 mm diameter
• 118-degree drill point angle suited for entry into steel, cast iron, and non-ferrous metals
• Fast spiral with 35-degree helix angle promotes chip clearance in deep or stacked-material drilling
• Bright polished finish reduces heat buildup and cutting friction
• Tapered web configuration adds point strength and reduces walking on entry
• Heavy-duty grade rating for demanding production drilling cycles

Compatibility

Designed as an OEM-style replacement or direct-use precision drill bit for circuit board and fine-tolerance metalworking applications requiring wire size 75 (0.53 mm) diameter tooling with a standard straight shank.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or PCB fabrication technicians familiar with small-diameter carbide tooling. Secure the shank fully in the collet or chuck before operation and verify runout before drilling to prevent bit breakage at this diameter. Carbide is brittle — avoid lateral loading or side pressure during the drilling cycle. Power down and lock out the spindle before changing bits.