MAXDRILL is a professional manufacturers of quality rock tools, such as button bits, Retrac bit, Integral drill steel, Tapered drill rod, Extension rod, Pneumatic rod, DTH hammer and bits, Shank adaptor, Coupling, Rock bolting, which serve in mining, quarry, water well, oil, gas, civil construction and slope stabilization industries. We serve customized design, production and serive according to worldwide clients� different condition.