Construction     Model Description Technical Specification Photo Revathi LHT Drill 102 to 115mm (4" to 4-1/2") dia as DTH drilling Diesel engine driven hydraulics Hydraulically operated propel, rotation and feed Towed compressor Click Here Click Here Revathi HHT Drill 152 to 171 mm 6" to 6 ¾"dia as DTH drilling Diesel engine driven hydraulics Hydraulically operated propel, rotation and feed Click Here N/A Revathi RAM Pneumatic Top Hammer Track Drill with towed compressor and extendable boom for drilling 64 to 102 mm (2 1/2" to 4") dia holes Gradeability upto 30° Click Here Click Here Revathi SCORPION Pneumatic Top Hammer Track Drill with "On-Board" compressor and extendable boom for drilling 64 to 102 mm ( 2 1/2" to 4") dia holes Gradeability upto 30° Click Here Click Here   Mining | Water Well | Exploratory