10-Pc Carbide Micro Drill Bits Set for PCB Circuit Boards

10-Piece Tungsten Carbide Micro Drill Bit Set for PCB & Circuit Boards

Get precision results every time with this professional-grade set of 10 tungsten carbide micro drill bits, engineered specifically for drilling PCB (printed circuit boards), FR-4, CEM-3, carbon fiber, composite boards, and more. Whether you're a hobbyist, electronics enthusiast, or professional technician, these micro drill bits deliver exceptional accuracy and durability for even the most demanding drilling tasks.

Made in Mainland China.

Why Choose These Carbide Micro Drill Bits?

• Premium Tungsten Carbide Material: Manufactured from high-grade tungsten carbide for superior hardness, wear resistance, high strength, and excellent anti-bending and anti-breakage properties.
• Precision Machined: Each bit is crafted using high-accuracy equipment to ensure consistent dimensions and tight tolerances for clean, accurate holes every time.
• Efficient Chip Removal: Wide flute design allows smooth chip evacuation, minimizing heat buildup and reducing the risk of board damage or bit breakage.
• Sharp Cutting Edge: Razor-sharp edges reduce cutting force, lower the breaking rate, and produce superior hole-wall quality — vital for delicate PCB work.
• Symmetrical Blade Design: Balanced, symmetrical cutting blades ensure accurate, offset-free drilling every single time.
• Excellent Milling & Cutting Performance: Optimized geometry delivers high efficiency cutting with minimal resistance, maximizing your productivity.

Specifications

• Material: Tungsten Carbide
• Shank Diameter: 3.175mm (1/8")
• Overall Length: 38mm
• Size Range: 0.1–1mm / 0.3–1.2mm (variant dependent)
• Quantity: 10 pieces per set

Applications

Ideal for use with PCB boards, FR-4, CEM-3, environmental protection boards, SMT, CNC machines, molds, plastics, circuit boards, carbon fiber, and composite materials. Perfect for DIY electronics projects, CNC routing, and professional PCB fabrication.

Package Contents

• 10 x PCB Carbide Micro Drill Bits

Note: Please allow 1–3mm variance due to manual measurement. Color may vary slightly from screen to screen.

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Frequently Asked Questions

Q: What size range do these carbide micro drill bits come in?

A: This 10-piece PCB micro drill bit set is available in two size ranges: 0.1–1mm or 0.3–1.2mm, depending on the variant selected. Each set includes 10 bits to cover a variety of micro-drilling needs for circuit boards and other precision applications.

Q: What materials can these drill bits be used on?

A: These tungsten carbide micro drill bits are suitable for PCB (printed circuit boards), FR-4, CEM-3, environmental protection boards, SMT components, CNC-routed parts, molds, plastics, carbon fiber, and composite boards — making them highly versatile for both DIY and professional electronics work.

Q: What shank size do these drill bits have, and are they compatible with standard rotary tools?

A: Each bit features a 3.175mm (1/8") shank diameter, which is a standard size compatible with most rotary tools, PCB drilling machines, and CNC routers that accept 1/8" collets or chucks.

Q: Are these drill bits durable enough for repeated use?

A: Yes. Made from premium tungsten carbide — one of the hardest tool materials available — these micro drill bits offer excellent wear resistance, anti-bending strength, and anti-breakage properties. Their precision-machined design also promotes efficient chip removal, which reduces heat buildup and extends the working life of each bit.