Wera Joker Double Open-End Spanners have a unique jaw design An innovative metal stop-plate means that they can hold a fastener in position making assembly easier and quicker Made from durable chrome molybdenum steel and coated with corrosion resistant nickel-chrome The jaws allow safe screwdriving even at high torques due to extra hard and toothed gripping plates which prevent slippage of the fastener and help to eliminate rounding A reverse travel angle of 30° allows the wrenches to be used in confined spaces where a conventional open-end wrench cannot be used
