PCB Drill Bits Explained: Sizes, Types and Quality

Drilling is where many PCB defects begin. The right PCB drill bits — and a supplier who delivers consistent quality — protect hole wall quality, registration and overall yield.

Carbide drill bit basics

PCB drill bits are micro-grain tungsten carbide, sized from roughly 0.2 mm upward. Bit geometry and coating affect hole quality, debris removal and how many hits each bit can make before it must be replaced.

Choosing the right drill bits

• Correct diameter for your smallest hole
• Quality carbide for consistent hole walls
• Appropriate hit count for your material
• Reliable supply so production never stalls

Chetumax Sales supplies PCB drill bits as part of our materials division. Contact us with the sizes and quantities you need.