Gear Wrench Tools

wrench
twist or pull violently or suddenly, especially so as to remove (something) from that to which it is attached or from where it originates; "wrench a window off its hinges"; "wrench oneself free from somebody's grip"; "a deep sigh was wrenched from his chest"
Injure (a part of the body) as a result of a sudden twisting movement
a sharp strain on muscles or ligaments; "the wrench to his knee occurred as he fell"; "he was sidelined with a hamstring pull"
make a sudden twisting motion
Pull or twist (someone or something) suddenly and violently
Turn (something, esp. a nut or bolt) with a wrench

tools
A device or implement, esp. one held in the hand, used to carry out a particular function
A thing used in an occupation or pursuit
(tool) drive; "The convertible tooled down the street"
(tool) instrument: the means whereby some act is accomplished; "my greed was the instrument of my destruction"; "science has given us new tools to fight disease"
A person used or exploited by another
(tool) an implement used in the practice of a vocation

gear
One of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism (such as the engine of a vehicle or the crank of a bicycle) and the speed of the driven parts (the wheels)
Equipment that is used for a particular purpose
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
A particular function or state of adjustment of engaged gears
set the level or character of; "She pitched her speech to the teenagers in the audience"
gearing: wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed; "the fool got his tie caught in the geartrain"