Description
Carbide tipped drill bits with high hardness, high wear resistance, high strength, resistance to bending, anti-impairment and long tool life..Tip spiral flute tungsten carbide drill bits with shaper cutting edge, reduce cutting force and prevent drill broken, improve the drilling accuracy.Great for drilling PC Boards, Plastics, Fiberglass, Wood, Soft Metals, etc.Drill bit has a large scraps discharge space, little resistance and smoothly during the scraps discharge.Easy to change out and do a great job cutting through the PCB for solder holes