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20 Pcs Micro Drill Bit Set 0.3-1.2mm Micro Drill Bits Tungsten Steel PCB Print Circuit Board Flute CNC Router Bits Shank for Rough Stone Jewelry Punching Engraving

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$6.99

$ 3 .99 $3.99

In Stock

About this item

  • 【Premium Material】The micro drill bit set is made of high-quality tungsten steel, with high wear resistance, high hardness, not easy to bend, and has good milling and cutting performance.
  • 【High-precision Cutting Edge】The micro drill bit adopts a nano-scale spiral cutting edge, which reduces the cutting force, prevents the drill from breaking, and improves the machining accuracy.
  • 【Easy to Use】Micro drill bits are designed with shock-proof design, stable and reliable engraving process, fast and clean work without burr, large chip removal space, low drilling heat, very practical.
  • 【0.3-1.2mm Multiple Sizes】This PCB drill bit set contains 10 different sizes: 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, different sizes to meet different needs.
  • 【Wide Application】These tungsten carbide drill bits are ideal for drilling holes in printed circuit boards, CNC engraving plexiglass, amber beeswax, bakelite, jewelry, plastic and other precision drilling.


Quality Service
Your satisfaction is our greatest concern. If you have any questions or dissatisfaction with the product, please feel free to contact us and we will provide you with the best solution.


Specification
Product name : 20 pcs micro drill bit set
Color: mixed color
Material: tungsten steel
Drill bit size: 0.3-1.2mm/ 0.012-0.047in
Drill bit length: 3.8cm/1.49in
Drill bit handle width: 3mm/0.12in
Box size: 8.7x5x1cm/3.42x1.97x0.4in
Net weight: 74g
Gross weight: 76g
Packing method: bag
Packing size: 20x12x1cm


Packing List
A box of random color 20 pcs PCB drill bits 0.3-1.2mm


Dan Klepac
2025-08-28 10:23:44
a good addition for modeling hobbyists, use caution, bits can break easily
Bud
2025-06-09 17:51:47
I have abused these bits...only broke ONE so far. Great for circuitboards, building scale models and with the 1/8" shanks, they fit directly in a real Dremel tool. The colored rubber donuts on the shanks make them easy to find if dropped. Fast shipping also. I would HIGHLY recommend this item. Thanks again, Amazon.
Dmitriy A.
2025-03-18 18:05:10
Incredibly brittle, compared to my other sets.
Garry Berringer
2025-03-13 13:31:42
exactly as described
Bill J
2025-01-07 14:35:34
These are durable micro drills. I would not advise using in power drills.
Debbie
2024-12-17 13:12:59
Two sets of mini thumb drills, did exactly what I needed
James Liska
2024-12-09 14:10:34
won't drill gemstones
Kalman Gubics
2024-12-03 14:44:32
Be careful! Brittle but if used gently in a pin vise you can get bye. Next time I need a set I'll get a higher quality.
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