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

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  • High Quality Material The mini drill bits set is made of high-quality tungsten steel, which has high wear resistance, high hardness, and is not easy to bend. The anti-vibration design of the blade makes it stable and reliable during the engraving process, and has good milling and cutting performance.
  • High Precision Cutting Edge The micro drill bits uses a nano-level spiral cutting edge to reduce cutting force, prevent the drill bit from breaking, improve processing accuracy, and have no burrs or debris.
  • Wide Usage 0.01-0.05 inch small drill bits set is suitable for processing precision drilling of amber beeswax, circuit boards, CNC engraved jewelry, hardware, plastics and so on.

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