The wera joker is an innovative combination wrench with a unique jaw design its clever design means that it does everything that a conventional combination wrench does and more made from durable chrome molybdenum steel and coated with corrosion resistant nickel chrome the joker is a truly high quality wrench advantages of the jaw end an innovative metal stop plate means that the joker can hold a fastener in position for screwdriving making assembly easier and quicker an integrated limit stop act