Wera wera 9509 sm n hex key set short arm chrome plated 15 10mm 9 piece
High grade steel chrome plated hex key set with weras patented hex plus profile this enables 20 more torque to be applied without damaging and rounding out the socket screw often with a damaged screwhead these hex keys will undo the screw where others fail ball end tip on long arm gives better access to restricted areas