Profile: Yanggu Haoquan Rock Tools Co., Ltd is a manufacturer and exporter of road milling tools, foundation drilling tools, coal miner tools, rotary cutter bits and other tungsten carbide brazed products. We are an ISO 9001:2008 certified company. Our products are mainly used for road milling, surface mining, tunneling, trenching, rock drilling and recycling industries. Round shank cutter bits are used for foundation drilling applications. They are used for all kinds of rotary piling machines and drill rigs. Our construction drilling tools include welding bars, casing teeth, diaphragm wall cutting and HDD tools. We offer all kinds of conical bits used in excavating coal machines for underground mining.