Features of Hydraulic Wrench

Hydraulic wrench have drive hydraulic wrench and hollow hydraulic wrench two major series.As the name suggests, the drive hydraulic wrench is driven by the drive shaft corresponding standard sleeve to end the pre-tightening of the nut, only the torque scale allows, according to the replacement of the corresponding high strength socket to end different standards of bolts, for the general hydraulic wrench, applicable to a wide range of scale.Hollow hydraulic wrench is used with a transition set .Generally used in where the screw  extend too longer , small space scale, double nuts,small  bolt distance conditions.