Cheap And Discounts Diamond Beveling Chamfer Bit Dia M10 Conical Diamond Grinding Wheel M10 Thread Milling Bits Cutter Hole Saw Chamfering Bit Wholesale. Buy Directly From Merchant Global Tool Mart Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.