Changhong Drill manufactures high, medium and low air-pressure DTH hammers and drill bits, concentric and eccentric drilling system, tunnel TBM cutter, various threaded drill bits and shank adapter, coupling sleeve, drill pipe and rock drilling accessories. All of our products are compatible with world famous brand products such as Atlas, Ingersoll Rand, Sandvik. They are widely used in construction sites of mining drilling, ground excavating, tunnel drivage, transportation, irrigation works and hydropower, water well, foundation treatment, exploration, applicable for rock drilling and cutting tools under various geological conditions.