Cheap And Discounts Carbide Tungsten Steel 3MM Shank Drill Bit Small Diameter 0.3-3mm CNC Twist Drill Bit Metalworking Copper Aluminum Drills Tools Wholesale. Buy Directly From Merchant South China FGEDCS Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.