After insertion, the socket is securely connected to the extension bar (Click’N Hold). The socket can be detached by pulling down the ring.

SECURITY: no risk for locked sockets to fall off extension bar. SIMPLICITY: pull on the ring to unlock the socket. Comes with a lock pin: enables the tightening of the socket. Protection of the square's edges. 100% forged. Chrome vanadium steel, best material for sockets and other accessoiries. Hardness: 40 to 46 HRC - Long durability.