Qingdao Stingrray rocktools Co., Ltd is located in Qingdao China . It is the Leading professional manufacturer and exporter of rock drilling tools,button bits,retrac button bits,DTH bits,Blast furnace tapping tools,foundation drilling tools, Asphalt road planing bits ,Excavating coal cutter bits ; Construction cutter bits for tunnling, trenching and drill Auger,tricone bits,PDC bits,Drilling rod,Shank adapter,Coupling,etc.We have many years exporting experiences in these field .We have very good relationship and reputation among our customers. We have very strong technical and producing experiences to make best quality tools.We are developing our business relationship with many Famous rock tools and Tungsten Carbide companies in world. We have approval IQNET AND CQM ISO9001:2000 Quality System Certificate. Products enjoy great popularity home and abroad and have been exported to Europe, Australia, Africa, South America, Mid-east, East Asia, South Asia more than 30 countries and regions. Welcome to our team for a bigger and brighter future.