PDB Tools Inc. is a supplier of rotary blasthole rock bits for the mining industry. PDB offers a complete line of tungsten carbide, open bearing rotary rock bits ranging from 6¾ to 13¾ inches. With more than 75 years of combined experience, PDB Tools touts its “innovation, performance and value” to customers. Based in Grapevine, Texas, the company utilizes the latest research and technology for the design and manufacture of its rock bits. www.pdbtools.com