2 дюймов круглая гайка разводной ключ полукруглая головка крюка дюймовый

2 inch Round Nut Adjustable Wrench Semi-circular Hook Head Wrench 

A wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects—usually rotary fasteners, such as nuts and bolts—or keep them from turning. The user could purchase the siutable crescent plate head wrench according to the size of the turn things. There is a specification of the wrench for reference.