The EXTRA MACHINE Micro Drill Bit 0.1mm–6.0mm Diameter is designed for professionals and DIY users who need exceptional drilling accuracy for PCB manufacturing, CNC engraving, electronics, plastics, and precision machining. Manufactured by BB, these high-quality tungsten carbide micro drill bits provide clean, accurate holes while maintaining excellent rigidity and wear resistance.
Whether you’re working on printed circuit boards, composite materials, plexiglass, molds, or light metals, the EXTRA MACHINE Micro Drill Bit offers outstanding cutting performance with long service life and excellent dimensional accuracy.
Why Choose EXTRA MACHINE Micro Drill Bits?
- Available in diameters from 0.1mm to 6.0mm
- Premium Tungsten Carbide construction
- High drilling precision for micro holes
- Excellent wear resistance
- Smooth chip removal
- Suitable for high-speed CNC applications
- Compatible with PCB drilling machines and engraving machines
- Multiple material options available
- Ideal for industrial and DIY applications
Product Specifications
| Specification | Details |
|
Brand |
BB |
| Product Name | EXTRA MACHINE Micro Drill Bit |
| Origin | Mainland China |
| Model | Mini |
| Type | Twist Drill Bit |
| Material | Tungsten Carbide |
| DIY Supplies | Metalworking |
| Customizable | Yes |
| High-concerned Chemical | None |
| Diameter Range | 0.1mm-6.0mm |
| Overall Length | 38mm-50mm |
| Standard Length | 38mm |
| Shank Diameter | 3.175mm (1/8”) |
| Cutting Length | 8-10mm |
| Point Angle | 118 or 135 |
| First Relief Angle | 10 |
| Second Relief Angle | 30 |
Note: Drill bits with diameters greater than 3.175mm feature a 160° drill tip angle for improved cutting performance.
Material Options
Basic Grade
The Basic version is manufactured using recycled carbide material, making it a cost-effective solution for light-duty drilling tasks.
Benefits include:
- Budget-friendly pricing
- Suitable for hobby projects
- Good cutting performance
- Recommended for occasional use
Pro Grade
The Pro version is manufactured using brand-new tungsten carbide alloy, significantly improving durability and tool life.
Advantages include:
- Longer service life
- Higher wear resistance
- Better heat resistance
- Improved drilling accuracy
- Recommended for professional and industrial applications
Applications
The EXTRA MACHINE Micro Drill Bit is suitable for drilling:
- Printed Circuit Boards (PCB)
- Electronic circuit boards
- Plastic
- Composite boards
- Plexiglass (Acrylic)
- Amber wax ornaments
- Mold materials
- Aluminum
- Copper
- Brass
- Light metals
- Precision mechanical parts
- Engineering materials
Compatible Equipment
These micro drill bits work perfectly with:
- PCB drilling machines
- CNC routers
- CNC milling machines
- CNC engraving machines
- Automatic drilling equipment
- Precision drilling machines
- Desktop engraving machines
Precision Design Features
Every BB Micro Drill Bit is engineered for maximum accuracy.
Key design features include:
- Ultra-sharp cutting edges
- High concentricity
- Stable drilling performance
- Reduced vibration
- Excellent chip evacuation
- Precision ground flutes
- Superior dimensional accuracy
Available Sizes
Choose from a complete diameter range:
- 0.1mm
- 0.2mm
- 0.3mm
- 0.4mm
- 0.5mm
- 0.6mm
- 0.8mm
- 1.0mm
- 1.2mm
- 1.5mm
- 2.0mm
- 2.5mm
- 3.0mm
- 4.0mm
- Up to 6.0mm
Additional configurations such as D=3mm, D=4mm, and D1=D2 are also available.
For customers seeking maximum durability, integral solid tungsten carbide drill bits are recommended.
Operating Recommendations
To maximize tool life:
- Apply vertical and even pressure during manual drilling.
- Avoid excessive side force.
- Do not touch the cutting edges with your hands.
- Remove drilling dust and chips regularly.
- Use appropriate spindle speeds for different materials.
- Ensure the workpiece is firmly secured before drilling.
Because tungsten carbide is extremely hard, improper handling or uneven force may cause premature wear or fracture.
Advantages of Tungsten Carbide Micro Drill Bits
Compared with conventional steel drill bits, tungsten carbide offers:
- Longer service life
- Higher hardness
- Better wear resistance
- Superior heat resistance
- Higher drilling precision
- Cleaner hole finish
- Excellent dimensional consistency
- Reduced tool replacement frequency
Why Buy from BB Official Store?
BB is a professional manufacturer specializing in the research, development, and production of precision machining tools.
When purchasing from the BB Official Store, you benefit from:
- Professional manufacturing expertise
- Wide selection of machining tools
- Multiple size options
- Combination shipping for multiple products
- Reliable quality control
- Competitive pricing
- Fast order processing
Shipping Information
- Approximately 80% of the shipping cost is subsidized by the seller.
- Orders are processed promptly after payment verification.
- Most orders are shipped within 3 working days.
- Standard Airmail is the most economical shipping option and may require additional delivery time.
- Express shipping is recommended for urgent orders.
- If your shipment has not arrived within 60 days, contact customer service for shipment tracking and assistance.
Conclusion
The EXTRA MACHINE Micro Drill Bit 0.1mm–6.0mm Diameter delivers exceptional precision, durability, and reliability for PCB drilling, CNC engraving, electronics manufacturing, and precision machining. Available in both economical recycled carbide and premium solid tungsten carbide versions, these drill bits are designed to meet the needs of hobbyists, engineers, manufacturers, and industrial professionals looking for consistent drilling performance and long-lasting quality.
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