The britool 12in drive 42 piece metric socket set is supplied in a socket set case with metal clasps which also converts into a modular storage system for use in roller cabinets consisting of 24 x 12in hex sockets 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 and 32mm 11 x 12in hex long deep sockets 12 13 14 15 16 17 18 19 21 22 and 24mm 2 x 12in extensions 130mm and 50mm 1 x 12in t handle 12in universal joint1 x 12in coupler 38in 1 x 38in adaptor 12in1 x 12in reversible rat