Dalek driller

The Dalek Driller was a drilling vehicle used by the Daleks. They invaded the planet Ecros and enslaved the Klims to get materials for the vehicle. The Daleks planned to use the Dalek Driller to destroy both Ecros and Earth. The Fourth Doctor, Sarah Jane Smith and Ticon hijacked the driller. But the Daleks sent an automatic signal to have the Dalek Driller on the surface. They repaired it and used it to go underground. But the Doctor threw a bomb to destroy the Dalek Driller and stopped the Daleks' plans. (COMIC: The Dalek Revenge)