Wera 8796 SC Zyklop "flexible-lock" extension with free-turning sleeve, short, 1/2", 1/2" x 125 mm

Wera Zyklop extension with flexible-lock: when activated the sockets are secured and permanently fixed, any unintentional loss being avoided. When the system is deactivated, the sockets can be quickly attached and exchanged. Equipped with a free-turning sleeve for faster turning of screws and nuts.