An extension of the tardisrsquos fantastic advanced technology this is the doctorrsquos second best friend itrsquos a multi functional device that operates by emitting pulses or waves of sound energy so powerful it can break rock shake a lock mechanism loose or vibrate the molecules of a material so fast they weld together with various power settings and functions we39ve yet to see the sonic screwdriver is the ultimate indispensable tool to have when adventuring through time and s