Cheap And Discounts PCB 3D Milling Cutter 3.175 Shank Tungsten Carbide V Shape Blue Coating 10 Degree PCB Engraving Bit CNC Router Bit Wholesale. Buy Directly From Merchant MasterChow Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.