A pickaxe, sometimes simply referred to as an axe, (TV: Fear Her [+]Matthew Graham, Doctor Who series 2 (BBC One, 2006).) was a hand tool with a head comprised of a counterbalanced spike and chisel, perpendicular to the handle. It was used to break apart hard ground or rock.
Rose Tyler borrowed a pickaxe, which Kel referred to as the "council axe", from Kel's council van to break apart the tarmac containing the Isolus pod. (TV: Fear Her [+]Matthew Graham, Doctor Who series 2 (BBC One, 2006).)
Ike described a Skaratid as having "six mouths and teeth like pickaxes". (COMIC: Mine, All Mine! [+]Steve Lyons, DWA comic stories (BBC Magazines, 2011).)