How To: Use & operate swivel clamps to String a Tennis racket

String a tennis racket. Take a look at this instructional video and learn how to use and operate swivel clamps. The two main components of the swivel clamp are the tightening teeth and locking down the clamp. The clamp keeps it from moving along the side bar, some are spring assisted, some are not. The tightening teeth is used to keep the clamp attached to the string.