We, Guizhou Sinodrills Equipment Co., LTD, are an ISO9001 certified manufacturer of various high quality rock drilling tools widely used for mining, quarrying, construction, tunneling, oil (gas) driling, construction and civil engineering . Established in 2002, we are committed to continuous improvement of our products quality while reducing the cost by combining with state of the art design, selected premium raw materials ,advanced workshop and highly skilled workforce. We carry a comprehensive range of rock drilling tools including TH(top hammer) drilling tools, DTH( down the hole) drilling tools, diamond exploration drilling tools, SDA(self drilling anchor) tools and rotary drilling tools( drag bits and tricone bits).Thanks to excellent quality and competitive price, our products have been exported to 78 countries till 2012, especially in some european countries and North America countries, we share a good market.