Wrench
A wrench was a tool used to increase torque and turn bolts, nuts, or other hard-to-turn items. 

Wrenches were used by the inhabitants of . In 2267, Jahn's friend used a wrench to bludgeon Captain Kirk. () 

Engineers aboard the  used wrenches in the late 23rd century. Benjamin Finney used a wrench found in the Enterprise engineering room as a weapon against Kirk. ()

In 2373, Crewman Amaro joked with Pechetti and Boq'ta – both engineers aboard Deep Space 9 – that he and Stolzoff would guard them while they "play[ed] with their wrenches." ()

In 2268, when held captive on the surface of the planet Omega IV, Spock used a Kohm wrench-like tool in an attempt to repair a transmitter so they could be beamed up to the . ()

Types 
 Box wrench
 Monkey wrench

External link 
 

de:Schraubenschlüssel
Engineering tools