Plankton's drill is a vehicle driven by Plankton. It only appears in the episode "Chum Caverns." It is accidentally used to create the location of the same name.
It almost looks like a crane and is an orangish-yellow construction vehicle with a drill on the front. Karen is installed in it and it is powered by a pedal-themed generator.
When Plankton crashes into the Chum Caverns, it falls into a lake and is destroyed. However, at the end of the episode, Plankton is seen trying to bury Mr. Krabs with it.
- 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.