Cheap And Discounts PCB Drill Bit 0.3mm to 1.2mm PCB Mini Drill Bit Tungsten Steel Carbide for Print Circuit Board CNC Drill Bits Machine Wholesale. Buy Directly From Merchant Hands DIY Your Pro Tools Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.