HYDX-2A Full Hydraulic Core Drilling Rig
HYDX-3 Full Hydraulic Core Drill Rig
HYDX-4 Full Hydraulic Core Drilling Rig
HYDX-5A Full Hydraulic Core Drilling Rig
HYDX-5 New Full Hydraulic Core Drill Rig
HYDX-6 Full Hydraulic Core Drilling Rig
HCR-8 Full Hydraulic Core Drilling Rig