PRD Trolley Mounted Drill Rigs
 
Capacity: 4.1/2" dia. bore hole upto 180 mtrs. and 6" dia. bore hole upto 100 mtrs. by DTH, 6" to 8.1/2" dia. hole upto 100 mtrs. by rotary in steps. For More Information About this Waterwell Drilling Rig Click
http://www.dthrotarydrilling.com/PARANTHAMAN-EXPORTERS/Trolley-Mounted-Drill-Rigs.html