Screwdriver

Usage
Can be used to chip away at rocks/walls or to unscrew vents (can last for up to two vent covers). Can be used as a weapon but if it is in the weapon slot it will not be seen by metal detectors like any other contraband weapon (TE1 only). Used in the tutorial level of TE1.

Obtaining
Can be obtained by buying it from fellow inmates or knocking them out. Can also be found in prisoner stashes in vents or maintenance corridors, as well as in desks.

Crafting
TE1 only: