Cheap And Discounts Combined Center Drills 60 Degree Countersink Angle Bit 1.0/1.5/2.0/2.5/3.5/4/5mm Tungsten Carbide Metal Drill Bit HSS Drill Bit Wholesale. Buy Directly From Merchant HXC Professional Tool Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.