Plankton's Drill is only seen in the episode "Chum Caverns." It was accidentally used to create the Chum Caverns.
It almost looks crane-like, and it is an orangish-yellow construction vehicle with a drill on the front. Karen is installed in it. It is powered by a pedal-themed generator.
When Plankton crashed into the Chum Caverns, it fell into a lake and was destroyed. However, at the end of the episode, Plankton is seen trying to bury Mr. Krabs with it.
- It is unknown what happened to the Drill in the end and if it will re-appear in any other episodes.
- In the Chum Caverns, the use of the drill to cut tunnels underneath Mr. Krabs, making the tunnel above collapse (and him fall), may be a reference to the classic arcade game Dig Dug.
- The drill was vertical when Plankton was just about to start drilling into the ground. As he began to dig, it was suddenly attached to the vehicle, and the crane arm disappeared.