GEDORE-vanadium steel 31CrV3,manganese-phosphated,from 7/16" to 1.1/8" with suspension hole,jaws: ground precisely to exact,nominal size for optimum contact surfaces,Jaw angle 15°,Safe grip by profile axis - very ergonomic and handy,overload is indicated by deformation,from 10 mm to 135 mm with suspension hole,* not standardised