Gearwrench Wrenches

wrenches
Pull or twist (someone or something) suddenly and violently
Injure (a part of the body) as a result of a sudden twisting movement
(wrench) a sharp strain on muscles or ligaments; "the wrench to his knee occurred as he fell"; "he was sidelined with a hamstring pull"
(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"
(wrench) make a sudden twisting motion
Turn (something, esp. a nut or bolt) with a wrench