Cheap And Discounts 1pc 1/4" Hex Shank Twist Glass Bit Titanium Ceramic Drilling Drill Set 3 4 5 6 8 10 12mm Tile Concrete Cross Flat Hole Tile Tool Wholesale. Buy Directly From Merchant Tool World Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.