Invention Features: 1. Stepless and instant adjusting mechanism. 2. Abosolute non-slip system. 3. The more stress made on handle/jaws, the more force is aroused onto surface of the workpiece. 4. Lower process cost is required than with common adjustalbe wrench. Operation Methods: A. Press the 'press' button to move away the movable jaw from the fixed jaw for gripping workpiece. B. Push the movable jaw to clamp workpiece. C. Press the 'press' button and move the movable...