Cheap And Discounts 1set Drill Bits Drilling Bit 0.6-1.5mm CNC Spiral Groove Drill Bit Print Circuit Board Hard Alloy PCB Drill Bit Set Wholesale. Buy Directly From Merchant Enjoying-Life Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.