BB Tools
Carbide PCB Micro Drill Bits | 0.1–6.0mm, 3.175mm Shank for PCB & CNC
Carbide PCB Micro Drill Bits | 0.1–6.0mm, 3.175mm Shank for PCB & CNC
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BB Micro Drill Bit（D=3.175mm）
-Basic material: Made of recycled carbide material. More economical. But it is not durable, so it is suitable for light work.
-Pro material: Made of brand new tungsten steel material. The service life is greatly improved.
Recommended equipment: PCB drilling machine, engraving machine, CNC, etc.
Application：
PCB, plastic, circuit board, composite board,Amber wax ornaments, metal, plexiglas, mold and so on.
When DIY manual operation, it is recommended to use vertical and uniform force. The hardness of the drill bit is high. Uneven force will affect the service life and fracture. Do not touch the blade with your hands or external force to avoid damage.
Clean up the powder generated during drilling in time.
Point Angle：135° or 118°
The first side Angle:10°
Second Angle:30°
length of cut :8~10mm
Total length: 38mm
More Chioces
*D=3mm and 4mm
*D1=D2
If you need a small diameter drill made of integral tungsten steel alloy (it makes the drill more durable).
You can click the picture below to view.
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