DKARDU PCB Drill Bits Set 0.1mm-1.0mm, 1/8" Shank Spiral Flute PCB Carbide CNC Print Circuit Board Tunsen Tool for CNC Engraving (4 Pack)

["High Quality: The PCB drill bit set is made of high-quality carbide water steel alloy, which is high wear resistance, high hardness, and resistance to sudden damage.","Professional Design: The seismic design of the blade edge keeps it stable during engraving.","Product Features: With the spiral flute tip, these PCB drill bits can reduce cutting force and prevent drill cracking and improve accuracy. They work quickly and cleanly without failure or waste.","Easy to Store: Each set has a protective box, and each box contains ten drill bits, which makes it easy to store and carry.","Product Application: Suitable for amber beeswax, printed circuit boards, 3D printer nozzle cleaning, plexiglass, beclet, CNC engraving, jewelry, plastics and other precise drilling","Durable: Made with precision technology, high quality and long service life.","Product Included: 4 x PCB Drill Bits Set 0.1mm-1.0mm."]