2x sockets: SW12 / SW15 (1/4" Drive total length 40mm). The bits are made from S2 steel and are tamper proof. 7x 5 point tamper proof bits: TS10 / TS15 / TS20 / TS25 / TS27 / TS30 / TS40. 2x specialist sockets: 2.2mm / 3.2mm (1/4" drive total length 50mm).