A vise is used as a device for fixing various construction pieces. The tensioning aid is equipped with a stationary as well as with a free-running jaw. The workpiece is clamped in the middle of the jaws. On vices are often mounted two removable jaws, which are adapted to the shape and material properties of their workpiece to be clamped.
Cheap vise models such as these here https://www.schraubstock-test.de are made of cast steel and ensure a satisfactory Clamping accuracy in the period of the clamping process. Usually vices are used by plumbers, precision mechanics and do-it-yourselfers.