Set of 2. Self-adjusting double open-ended spanner for hexagonal screw heads or nuts with spanner size 7-10, 10-13 (metric) or 1/4"-3/8", 7/16"-8/16" (inch) and 13-16, 16-19 (metric) or 1/2"-5/8" and 5/8"-3/4" (. Thanks to the continuously and parallel jaws, several single spanner dimensions are replaced. The required size adjusts freely by itself when attaching to the hex nut or screw. The integrated lever mechanism securely clamps the hex screw or nut between the jaws, which significantly reduces the risk of slipping and damage. The ratchet function ensures fast and continuous screwing without settling. By using the corner width prisms, a backswing angle of only 30° can be realized. Ratchet function and corner width prism allow you to work even in tight spaces. The Joker 6006 Adjustable Double Open-End Wrench with Ratchet Function is the universal screw tool. Self-adjusting. Gripping Ratcheting Comes in a durable bag.