Drilling rig
From Memory Alpha, the free Star Trek reference
A drilling rig was a mechanical device that was used to drill deep holes into the ground.
The Enterprise (NX-01) was equipped with a portable drilling rig. In 2151, Malcolm Reed and Travis Mayweather used the device to take a core sample from Archer's Comet which was rich in eisillium. The drill hit a layer of magnesite which broke the drill bit, but the away team was able to replace the bit and successfully take a core sample. (ENT: "Breaking the Ice")
