High quality metric double open ended wrench by wera everything a wrench has to do and much more faster better more stylish simply said a real joker the new generation of ratcheting combination wrenches suitable for hexagonal nuts and bolts equipped with a unique holding function thanks to the metal plate in the jaw which reduces the risk of dropping nuts and bolts replaceable metal plate in the jaw secures nuts and bolts with its extra hard teeth and reduces the danger of slipping