Combat drill

"Lord Vader! What Happened?" "He veered off course into the lithoporoite seam, Queen Trios." "That'll never support a combat drill. He'll of dropped all the way into the lower mantle. We've lost him."

- Queen Trios questions Chamberlain Jooli on the loss of Vader's combat drill

Combat drills were mining vehicles used as attack vessels in the Shu-Torun loyalist/Imperial delving fleet on the planet Shu-Torun. During the War on Shu-Torun, the Sith Lord Darth Vader rode in a combat drill with his stormtroopers, but his supposed ally Doctor Cylo-V sabotaged the vehicle and caused it to veer off course into a lithoporoite seam which was not strong enough to support the drills weight. The drill therefore fell into a cavern below the seam, where it was ambushed by troops working for Cylo-V and the rebellious Baron Rubix. Vader's troopers were able to defend the vessel with the aid of a squad of modified BX-series droid commandos also stored onboard the drill and eventually return to the true conflict.

Appearances

 * Star Wars: Darth Vader 18: The Shu-Torun War, Part III
 * Star Wars: Darth Vader 19: The Shu-Torun War, Part IV