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 Miri's homeworld. In 2267, Jahn's friend used a wrench to bludgeon Captain Kirk. 

Engineers aboard the USS Enterprise (NCC-1701) used wrenches in the late 23rd century. Ben 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 USS Enterprise (NCC-1701). 

Types of wrenches

 * Box wrench
 * Monkey wrench