Dalek Cleaver

The Dalek Cleaver was a type of spacecraft used by the Daleks. It was a drill-nosed spacecraft able to hurl itself at mountain-sized objects and bore through without any loss of speed. (PROSE: Dalek Survival Guide)

Behind the scenes
The Dalek Cleaver was originally identified in NOTVALID: The Dalek Task Force as a Dalek spacecraft-slash-weapon. Nicknamed the "cosmic can opener" by Earth's space pilots, this spacecraft was one of the unique ships at the disposal of the elite Dalek Task Force. It was capable of hurling itself as anything up to and including a mountain and then boring its way through with no speed loss.

Big Finish used similar drill-ships for the cover of some of its Time War series including: Only the Monstrous, The Thousand Worlds and The Heart of the Battle.