Sealey professional mechanics vices and swivel bases sealey usv150 a mechanics vice from sealey which is bench mounting with extra heavy duty sg iron vices suitable for workshop garage and machine shop applications features replaceable hardened and tempered high quality steel jaws precision engineered screw thread enables effortless jaw openingclosing fixed base mounts directly onto workbench guaranteed for life against manufacturing defects also available are swivel vice plate adapt