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A cheater bar, cheater pipe or snipe is an improvised breaker bar made from a length of pipe and a wrench (spanner). ==Primary use== Cheater bars are usually used to free screws, bolts, and other fasteners that are difficult to remove with a ratchet or wrench alone. Cheater bars are also commonly used to operate valves. When the handle of a wrench or ratchet is inserted into a cheater bar, the additional distance makes it possible to generate the required torque with the same amount of force being applied. However, the work done is the same with or without the cheater bar because the torque and angle of rotation needed to accomplish a particular task does not change. The cheater bar allows higher torque with the same force by: A cheater bar is sometimes called a pipe extension or an extension pipe. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cheater bar」の詳細全文を読む スポンサード リンク
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