Air mud drilling rig mark 70

With 70,000 lb pullback and 28,000 lb pulldown, the water well drilling rig MARK70 proves its strength among the Versa-Drill fleet. Its exceptional, easy-to-use technology makes its compressor air drilling. [pdf]

Steam drilling rig

The advent of cable-tool drilling introduced the wooden derrick into the changing American landscape. Using the same basic notion of chiseling a hole deeper into the earth, along with adding steam power and cl. [pdf]