기능

• The socket can be locked.
• Since the opposite ball is pushed out by the claw provided on the side of the insertion corner, the insertion hole of the socket and the ball engage tightly and do not release the socket.
• When the jagged part in the middle of the adapter is pushed down, the nail also slides down, and the ball retracts inward, and the lock comes off.
• When installing the socket, remove the lock in the same way.