Wrench [1] is a tool for tightening the bolt or screw mounting devices are characterized as long the butt of the shape to fit the device to use for the log device, such as bolt made from steel by the majority.
Wrench [1] is a tool for tightening threaded fasteners or fastening devices has a long handle and a head shaped to fit the device. For example, to use the device lock nuts. Most steel
[] 1 wrench is a tool for tightening screw nut, or seized equipment. There is a long tube header has the shape fit equipment. For the locking devices such as knots. Production of steel mainly.