Tungsten Carbide Drill Bits Micro Mini Drill High Precision Micro Drill Bits for PCB Board

【CUTTING FORCE REDUCING】Reduce the cutting force and the broken drill to improve the quality of the perforated wall. 【CONVENIENT STORAGE BOX】Comes with a great storage container that is easy to find and grips the required drill. 【FINE GRINDING PROCESSING】By using high quality materials and fine grinding process, the cutting edge becomes sharper. 【CONVENIENT AND EASY USE】Easy to replace and cut through the PCB board for soldering holes. 【LOW RESISTANCE SMOOTH 】The drill has a large drainage space for waste, low resistance and is smooth.