Cheap And Discounts Solid Tungsten Carbide Bits For Cnc Carbide 1.0-20mm Metal Working Tools Carbide Bits Metal Drill Set Hard Metal Drill Wholesale. Buy Directly From Merchant CNC QIYI TOOL Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.