Yanggu Lion Rock Tools Co., Ltd, is a professional manufacture of all types of rock drilling tools, mine fittings, civil engineering tools, cutting tools of shield machine etc. The special in producing high quality rock drilling tools are DTH Bits and Hammers, Button Bits, Thread Bits, Rock Bits, Ming Bits, Coal Bits/Picks, Chisel Bits, Cross Bits and Tungsten Carbide Buttons etc. Can be customized according to customer's requirements.