10pcs 0.3-1.2mm Micro Drill Bit SMT PCB Board Circuit Tungsten Steel Hole Cutter I3411072696

Quality ServiceYour 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. 【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.