12 inch DTH Drill Hammer
ROS120-SD DHD hammers are improved in many projects and widely used for varies applications, including overburden casing drilling and water well drilling.
1. Valveless air distribution ensures smooth working.
2. Piston design and harden wear part ensure strong wear-resistance
3. Minimize the energy loss, high penetration, lower air and oil consumption
4. Fewer internal parts minimize the maintain and replace the part requirements.