High grade steel 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 these keys have an extra short arm for particularly confined spaces practical rubber clip keep the keys secure ball end tip on long arm gives better access to restricted areas chrome plated finish contents includes9x hex keys 15 20 25