We, HUAFENG TOOLS, is a Chinese factory that specialist in production of Steel Core Tubes for Diamond Core Drill Bits, Wet and Dry Cut Diamond Core Drill Bit, Diamond Core Drill Bit Kit, Accessories and Adaptors for Diamond Core Drill Bit, Aluminium Frame Case for Diamond Core Kit Packing, Steel Core Blank for Diamond Cup Grinding Wheels, Diamond Blades and Diamond Grinding Wheels. The Company has over 10 years production experience and worldwide sold. Since producing the products by our owned workshop, we can get most economic production cost. And also can take a full quality control through the all process from raw material to finished products. So, we able to offer our customers the products in best quality with most competitive price.