Wera 05020231001 6003 Joker 11 Set 1 Combination Wrench Set, 11 Pieces. 6003 Joker 11pc Combo Wrench Set Metric in textile pouch. Manufactured from alloy steel for better strength and longer tool life. Open end grips tightly onto fasteners. Color coordinated with its sizes for easy. A must have for every home. We do not believe that tools have reached their ultimate stage of development. We are always searching for new ideas. And in so doing, develop screwdriving tools such as the Zyklop ratchet and the Joker open-end wrench – tools that have turned the familiar into the exceptional.