Ever had a hose clamp that rotates on you? The clamps always seem to rotate perfectly so that the ears on the clamp are facing away from you, impossible to get to with normal pliers or even with a cable-type tool. Thats where this tool comes in.
These pliers are designed to go around a hose and press the ears on the clamp from behind. Allowing you to remove the hose or simply rotate the clamp so you can then get another removal tool to release it.