Wera zyklop metal switch ratchets have extremely slim handles and heads with long leverage these forged full metal ratchets are made from chrome molybdenum and are very robust without any torque limitation the ratchets have a switch lever that allows convenient change of direction in addition they have a secure socket mechanism and 72 teeth that allow small increments of just 5this 12in drive 28 piece metric socket set consists of1 x 12in metal switch ratchet10 x 12in hex sockets 10 11 12 13 14