Dth hammerwe can supply you with elevated pressure and medium to low pressure dth hammers. It strictly matches with api standard and other chinese industry standards. It is durable for being produced with advanced craftwork and good material. It also has the following advantages 1. Deliver maximum energy to drilling bit, Fast drilling speed and low air consumption as a result of the special inner structure of hd series dth hammer designed according to newest rock drilling theory. 2. Smooth performance and extended durability of hd series dth hammer due to premium grade metal composite steel materials and advanced processing technology adapted. 3. Low problem rate and effortless to maintenance due to simple, Dependable and straightforward assemble and disassemble inner structure of hammer. 4. Easy to depart bit from hammer due to multi head thread connecting chuck and cylinder of hammer. 5. Interchangeable with dth bit and drill pipe