Wera C 4 Zyklop Magnetic Rail Socket Set 1/2" Drive 9 Pieces Metric 05005460001Socket rail with 9 manual and machine sockets (non impact), 1 2". A smooth rotary mechanism allows a secure hold and easy access of the sockets. With Take it easy tool finder with color coding by size to help you find the required tool quickly and easily. The rail allows temporary attachment to metallic surfaces and, with its twist to unlock function, ensures secure locking and unlocking of the sockets. 9 piece socket set on socket rail, 1 2" Rail