Many users desire a universal tool that offers a wide range of applications. It should be a single tool capable of handling multiple metric and imperial sizes. It should automatically adjust to different screw sizes, grip securely, avoid damage, and allow for high working speed. The continuously adjustable and parallel-guided jaws replace several individual wrench sizes. The required size adjusts itself smoothly when applied to the hex nut or screw. The integrated lever mechanism securely clamps the hex screw or nut between the jaws, significantly reducing the risk of slipping and damage. The ratchet function enables quick and continuous screwing without needing to lift the tool. By utilizing corner width prisms, a return angle of only 30° can be achieved. The single-arm design, in combination with the ratchet function and corner width prism, allows for work in tight spaces. The adjustable Joker 6004 is the universal tool: self-adjusting, gripping, and ratcheting. This four-piece set covers at least 18 different metric and imperial screw drives and comes in a compact folding pouch. The pouch features a Velcro system on the back for attachment to walls, shelves, workshop carts, and the Wera 2go system.